{"id":3584,"date":"2025-01-08T12:52:01","date_gmt":"2025-01-08T04:52:01","guid":{"rendered":"http:\/\/scubatechphilippines.com\/scuba_blog\/?p=3584"},"modified":"2025-01-08T12:52:01","modified_gmt":"2025-01-08T04:52:01","slug":"best-ascent-speed-scuba-diving","status":"publish","type":"post","link":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/","title":{"rendered":"The Best Ascent Speed for Scuba Diving"},"content":{"rendered":"\n<h1 class=\"wp-block-heading has-text-align-center\">The Best Ascent Speed for Scuba Diving<\/h1>\n\n\n\n<p>Is there a best ascent speed for scuba diving, or is slower simply better? This article answers that question and the answer may not be what you think!<\/p>\n\n\n\n<p>As a full-time <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/what-is-technical-diving\/\">technical diving<\/a> instructor for nearly two decades, I see lots of divers favoring extremely slow ascent rates. This is typical because the only message they have received is to &#8220;<em>ascend slowly from every dive<\/em>&#8220;.<\/p>\n\n\n\n<p>That ubiquitous message creates the false impression that the slower your ascent rate, the safer you are. In this article, I will explain why that assumption was proven to be incorrect. Furthermore, I will describe the optimal ascent speed for minimizing bubble formation and reducing the risk of <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/types-decompression-sickness-dcs\/\">decompression sickness<\/a>.<\/p>\n\n\n\n<p>Keep reading if you want to make your scuba diving safer!<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Article Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Is-slower-the-best-ascent-speed\" >Is slower the best ascent speed?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#What-is-the-problem-with-slower-ascents\" >What is the problem with slower ascents?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Divers-remain-deeper-for-longer\" >Divers remain deeper for longer<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Key-points-on-diving-ascent-speed-and-nitrogen-absorption\" >Key points on diving ascent speed and nitrogen absorption<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#A-pressure-difference-is-needed-to-remove-nitrogen\" >A pressure difference is needed to remove nitrogen<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Key-points-on-diving-ascent-speed-and-nitrogen-release\" >Key points on diving ascent speed and nitrogen release<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#What-makes-a-quicker-ascent-speed-better\" >What makes a quicker ascent speed better?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Key-points-on-the-goal-of-diving-ascents\" >Key points on the goal of diving ascents<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#The-best-ascent-speed-for-scuba-diving\" >The best ascent speed for scuba diving<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Best-ascent-speed-My-personal-experience\" >Best ascent speed My personal experience<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Applying-the-best-ascent-speed-on-scuba-dives\" >Applying the best ascent speed on scuba dives<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Best-ascent-speed-from-your-safety-stop\" >Best ascent speed from your safety stop<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Use-the-best-ascent-rate-for-safer-scuba-diving\" >Use the best ascent rate for safer scuba diving<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Best-ascent-speed-for-diving-references\" >Best ascent speed for diving references<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#About-The-Author\" >About The Author<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Purchase-my-exclusive-diving-ebooks\" >Purchase my exclusive diving ebooks!<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#Diving-ascent-rate-FAQ\" >Diving ascent rate FAQ<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Is-slower-the-best-ascent-speed\"><\/span>Is slower the best ascent speed?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Dive training agencies only specify a <a href=\"https:\/\/dan.org\/alert-diver\/article\/ascent-rates\/\" target=\"_blank\" rel=\"noreferrer noopener\">maximum ascent rate<\/a>. Typically, that is between 9m (30ft) and (18m (60ft) per minute. They avoid the liability of stating what an optimal speed would be.  <\/p>\n\n\n\n<p>In addition, beginner divers are told emphatically to &#8220;slowly ascend from every dive&#8221;. Obviously, that is because fledgling buoyancy skills can allow uncontrolled rapid ascents. However, that advice sticks in mind and many divers wrongly assume it is suggesting that slower ascents are better.<\/p>\n\n\n\n<p>In reality, everything we know about diving decompression theory suggests that ascending very slowly can increase the risk of DCS and cause greater bubble formation in the body.<\/p>\n\n\n\n<p>As a result, it is important to know that a slower ascent is not necessarily better.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"960\" height=\"724\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/01\/18221765_1527204353958300_2680917625506826387_n.jpg\" alt=\"best ascent speed for scuba diving\" class=\"wp-image-19278\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/01\/18221765_1527204353958300_2680917625506826387_n.jpg 960w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/01\/18221765_1527204353958300_2680917625506826387_n-300x226.jpg 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/01\/18221765_1527204353958300_2680917625506826387_n-768x579.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<div class=\"scuba-b4-h2-2\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-277194806\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"2393012471\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What-is-the-problem-with-slower-ascents\"><\/span>What is the problem with slower ascents?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Excessively slow ascent speeds can cause problems for scuba divers. There are two primary reasons for this:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Divers-remain-deeper-for-longer\"><\/span>Divers remain deeper for longer<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Firstly, ascending too slowly ascent means we are at a deeper depth for a longer time. As every diver knows, we absorb nitrogen more quickly at deeper depths.<\/p>\n\n\n\n<p>It is wrong to assume that we must be releasing nitrogen just because we are moving shallower. In many cases, we can be releasing nitrogen from our fast tissue compartments whilst simultaneously absorbing more nitrogen into slower tissues.<\/p>\n\n\n\n<p>In principle, we increase our safety from DCS by removing as much nitrogen as possible from our bodies before surfacing. As you can see, slow ascent speeds are the antithesis of that idea. They can cause to absorb more nitrogen.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key-points-on-diving-ascent-speed-and-nitrogen-absorption\"><\/span>Key points on diving ascent speed and nitrogen absorption<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Slow ascents cause more nitrogen absorption<\/li>\n\n\n\n<li>More nitrogen in our bodies increases DCS risk<\/li>\n\n\n\n<li>A safe ascent should maximize nitrogen release<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A-pressure-difference-is-needed-to-remove-nitrogen\"><\/span>A pressure difference is needed to remove nitrogen<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Secondly, we only release nitrogen by reducing the pressure outside of our bodies. Put simply, the pressure of nitrogen in our tissues has to exceed the <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/understanding-m-values-eric-baker\/\">ambient pressure<\/a> that surrounds us. This is known as super-saturation. As a result, the nitrogen leaves our bodies as the two pressures <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/equalization-techniques-tips-scuba-diving\/\">equalize<\/a>.<\/p>\n\n\n\n<p>When we ascend very slowly from a scuba dive, we minimize the amount of time where that pressure difference exists before we surface. In essence, this means we will surface with a lot more nitrogen in our bodies after a slow ascent, compared to a faster ascent.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key-points-on-diving-ascent-speed-and-nitrogen-release\"><\/span>Key points on diving ascent speed and nitrogen release<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A pressure difference is needed to release nitrogen<\/li>\n\n\n\n<li>Shallower depths allow more pressure difference<\/li>\n\n\n\n<li>The speed of nitrogen release is determined by the pressure difference<\/li>\n\n\n\n<li>Getting shallower accelerates nitrogen removal<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What-makes-a-quicker-ascent-speed-better\"><\/span>What makes a quicker ascent speed better?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Getting to a shallow depth more quickly maximizes the pressure difference that dictates the speed of nitrogen leaving our body. For that reason, the overall aim of a scuba <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/how-to-ascend-when-scuba-diving\/\">diving ascent<\/a> is to get shallow and then allow some time for nitrogen to leave our body via a safety stop.<\/p>\n\n\n\n<p>Obviously, there is such a thing as too fast. If we ascend too quickly then the rapid change in pressure can cause bubbles to form inside of us. Luckily, we are given maximum ascent speeds to prevent that from happening.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key-points-on-the-goal-of-diving-ascents\"><\/span> Key points on the goal of diving ascents<span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The aim is to ascend fast to a shallow depth<\/li>\n\n\n\n<li>At shallow depths, nitrogen is released faster<\/li>\n\n\n\n<li>A safety stop at shallow depth reduces nitrogen in our bodies before surfacing<\/li>\n\n\n\n<li>Less nitrogen in our bodies at the surface reduces our risk of DCS.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The-best-ascent-speed-for-scuba-diving\"><\/span>The best ascent speed for scuba diving<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>I have described that too-slow ascent speeds reduce our safety from DCS. Likewise, I have explained that ascending too fast can cause DCS. Consequently, there must be an ideal ascent speed somewhere in-between.<\/p>\n\n\n\n<figure class=\"wp-block-pullquote\"><blockquote><p>What is interesting, and not necessarily intuitive, is that an in-water stop with a relatively rapid ascent rate appears to be more effective at eliminating inert gas than a very slow ascent rate.<\/p><cite>Peter B. Bennett, Ph.D., D.Sc<\/cite><\/blockquote><\/figure>\n\n\n\n<p>Peter Bennett conducted <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/03\/Peter-Bennett-Deep-Stops-DAN.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">a study into ascent speeds<\/a>. The study was published by DAN and determined that:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>18m (60ft) \/min caused the most bubbles<\/li>\n\n\n\n<li>3m (10ft) \/min ranked second in bubble formation<\/li>\n\n\n\n<li>9m (30ft) \/min caused the least amount of bubbles<\/li>\n<\/ul>\n\n\n\n<p>This study was based on 181 dives to 25 m (82ft) for either 20 or 25 minutes. Bubbles were measured using doppler ultrasound. A higher bubble score means more bubbles were measured.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table style=\"border-width:2px\" class=\"mtr-table mtr-thead-th\"><thead><tr><th class=\"has-text-align-center mtr-th-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">Ascent Rate<\/div><\/th><th class=\"has-text-align-center mtr-th-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">Stops<\/div><\/th><th class=\"has-text-align-center mtr-th-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">Bubble Score<\/div><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">18m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">No Stop<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">*<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">3m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">No Stop<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">8.79<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">3m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">6 m for 5 min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">8.07<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">18m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">6 m for 5 min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">7.38<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">10m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">No Stop<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">7.34<\/div><\/td><\/tr><tr><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Ascent Rate\"><div class=\"mtr-cell-content\">10m\/min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Stops\"><div class=\"mtr-cell-content\">6 m for 5 min<\/div><\/td><td class=\"has-text-align-center mtr-td-tag\" data-align=\"center\" data-mtr-content=\"Bubble Score\"><div class=\"mtr-cell-content\">5.23<\/div><\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">*An 18m\/min ascent with no stop was not conducted for safety reasons.<\/figcaption><\/figure>\n\n\n\n<div class=\"scuba-b4-h2-3\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-1401883563\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"6151212517\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Best-ascent-speed-My-personal-experience\"><\/span>Best ascent speed: My personal experience<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>I teach scuba diving as a full-time job, and many of those dives involve decompression. Consequently, avoiding DCS is a high priority. Additionally, I would have a low quality of life if I experienced <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/subclinical-dcs-decompression-stress-fatigue\/\">decompression stress<\/a> and <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/why-does-diving-make-me-feel-tired\/\">post-dive fatigue<\/a> every evening. <\/p>\n\n\n\n<p>When I first read Peter Bennett&#8217;s study in 2007, it caused me to re-think all of my assumptions about what constitutes the best ascent rate.<\/p>\n\n\n\n<p>As a result, I began applying a 9m (30ft) per minute ascent rate into practice on my dives. The results were dramatic. I noticed an immediate improvement in not feeling <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/why-does-diving-make-me-feel-tired\/\">tired after diving<\/a>. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Applying-the-best-ascent-speed-on-scuba-dives\"><\/span>Applying the best ascent speed on scuba dives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>It is easy to track your ascent speed if using a dive computer. Most diving computers display ascent speed as a bar. That bar is typically broken into segments. Each segment equates to a 3m (10ft)\/min increment of ascent rate.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1 bar = 3m (10ft) per minute<\/li>\n\n\n\n<li>2 bars = 6m (20ft) per minute<\/li>\n\n\n\n<li>3 bars = 9m (30ft) per minute<\/li>\n\n\n\n<li>4 bars = 12m (40ft) per minute<\/li>\n\n\n\n<li>5 bars = 15m (50ft) per minute<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"214\" height=\"236\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2013\/10\/computer-display-ascent.jpg\" alt=\"best ascent speed for scuba diving\" class=\"wp-image-3585\" title=\"best ascent speed for scuba diving\"\/><\/figure>\n\n\n\n<p>When ascending from the bottom depth to your safety stop, you should aim to be at 3 bars. If you sneak up to 4 bars, simply vent a little gas from your BCD to slow down.<\/p>\n\n\n\n<p>As you approach your safety stop depth, hit the brakes by releasing more gas from your BCD. It can take a few meters to slow down, so start venting gas in a controlled manner when you reach 10m (30ft) depth. The aim is to slowly cruise into your safety stop without overshooting it.<\/p>\n\n\n\n<p>If your dive computer fails, you can <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-diving-skills-how-to-judge-your-ascent-rate-without-a-dive-computer\/\">judge your ascent rate manually<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Best-ascent-speed-from-your-safety-stop\"><\/span>Best ascent speed from your safety stop<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"has-text-align-left\">The pressure change between 5m (ft) and the surface is very large. For that reason, you should use a much slower ascent rate. This reduces the sudden change in pressure that causes more bubbles to form. As a result, you will be safer from DCS and <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/why-does-diving-make-me-feel-tired\/\">feel less tired after diving<\/a>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ascend from 5m (16ft) to the surface no faster than 3m (10ft) per minute.<\/li>\n\n\n\n<li>Traveling from the safety stop to the surface should take at least two minutes.<\/li>\n\n\n\n<li>Some experienced divers prefer to ascend at 1m (3ft) per minute; allowing 5 minutes to reach the surface.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left\"><span class=\"ez-toc-section\" id=\"Use-the-best-ascent-rate-for-safer-scuba-diving\"><\/span>Use the best ascent rate for safer scuba diving<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In conclusion, you should not assume that a slower ascent rate is safer. While dive training agencies only specify a maximum ascent rate, excessively slow ascent speeds can cause problems for divers. <\/p>\n\n\n\n<p>A slow ascent means a longer time at deeper depths where nitrogen absorption is higher. In turn, this leads to more bubbles and an increased risk of DCS. <\/p>\n\n\n\n<p>The best ascent speed is around 9m (30ft) per minute. However, always ensure that you conduct a safety stop to allow nitrogen release before surfacing.  <\/p>\n\n\n\n<p>Remember, safety is always the top priority when scuba diving. So, knowing the best ascent speed for minimizing bubbles and reducing DCS risk makes your dives safer and less tiring.<\/p>\n\n\n\n<div class=\"scuba-b4-h2-4\" style=\"margin-top: 10px;margin-bottom: 10px;\" id=\"scuba-3702491953\"><div class=\"scuba-adlabel\">Sponsored Link<\/div><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-9354033900485448\" crossorigin=\"anonymous\"><\/script><ins class=\"adsbygoogle\" style=\"display:block;\" data-ad-client=\"ca-pub-9354033900485448\" \ndata-ad-slot=\"2954736365\" \ndata-ad-format=\"auto\" data-full-width-responsive=\"false\"><\/ins>\n<script> \n(adsbygoogle = window.adsbygoogle || []).push({}); \n<\/script>\n<\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Best-ascent-speed-for-diving-references\"><\/span>Best ascent speed for diving references<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"http:\/\/www.alertdiver.com\/Ascent\" target=\"_blank\" rel=\"noreferrer noopener\">Ascent Rates, by Scott Smith<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2023\/03\/DAN-What-Ascent-Profile-For-The-Prevention-Of-Decompression-Sickness.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">What Ascent Profile For The Prevention Of Decompression Sickness&#8221;<\/a> Divers Alert Network<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-content-justification-center is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:25%\">\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-medium is-resized is-style-default\"><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\"><img decoding=\"async\" width=\"300\" height=\"296\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png\" alt=\"Andy Davis Technical Sidemount Wreck Diving Subic Bay Philippines RAID Courses Training\" class=\"wp-image-6812\" style=\"width:225px;height:222px\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-300x296.png 300w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-1024x1009.png 1024w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1-768x757.png 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2018\/03\/Cartoon-Andy-900x900-1.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-constrained wp-block-column-is-layout-constrained\" style=\"flex-basis:75%\">\n<h2 class=\"wp-block-heading has-text-align-center\"><span class=\"ez-toc-section\" id=\"About-The-Author\"><\/span>About The Author<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"274\" height=\"77\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png\" alt=\"\" class=\"wp-image-27046\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1.png 274w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2022\/12\/bmc-button-1-1-250x70.png 250w\" sizes=\"(max-width: 274px) 100vw, 274px\" \/><\/a><\/figure>\n\n\n\n<p><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\">Andy Davis<\/a> is a <a href=\"https:\/\/scubatechphilippines.com\/raid-diving-courses-philippines\/raid\/\">RAID<\/a>, PADI TecRec, ANDI, BSAC, and SSI-qualified independent technical diving instructor who specializes in teaching <a href=\"https:\/\/scubatechphilippines.com\/sidemount-courses\/\">sidemount<\/a>, <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">trimix<\/a>, and <a href=\"https:\/\/scubatechphilippines.com\/technical-diving-courses\/\">advanced wreck<\/a> diving courses.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Currently residing in <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/subic-bay-wreck-diving-sites\/\">Subic Bay, Philippines<\/a>; he has amassed more than 10,000 open-circuit and CCR dives over three decades of challenging diving across the globe.<\/p>\n\n\n\n<p><a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/\">Andy<\/a> has published numerous diving magazine articles and designed advanced certification courses for several dive training agencies, He regularly tests and reviews new <a href=\"https:\/\/scubatechphilippines.com\/scuba_blog\/scuba-equipment-shopping-buying-best-dive-gear\/\">dive gear<\/a> for scuba equipment manufacturers. Andy is currently writing a series of <a href=\"https:\/\/www.buymeacoffee.com\/andydavistech\/extras\">advanced diving books <\/a>and creating a range of <a href=\"https:\/\/www.redbubble.com\/people\/andydavistech\/shop\">tech diving clothing and accessories<\/a>.<\/p>\n\n\n\n<p>Prior to becoming a professional technical diving educator in 2006, Andy was a commissioned officer in the Royal Air Force and has served in Iraq, Afghanistan, Belize, and Cyprus.<\/p>\n\n\n\n<p>In 2023, Andy was named in the &#8220;<a rel=\"noreferrer noopener\" href=\"https:\/\/gue.com\/blog\/sidemount-andy-davies\/\" target=\"_blank\">Who&#8217;s Who of Sidemount<\/a>&#8221; list by GUE InDepth Magazine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-palette-color-7-color has-vivid-red-background-color has-text-color has-background has-link-color wp-elements-dd81a6de961563c5bf17302e4376cbd2\"><span class=\"ez-toc-section\" id=\"Purchase-my-exclusive-diving-ebooks\"><\/span>Purchase my exclusive diving ebooks!<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/233191\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg\" alt=\"Gas Management For Scuba Divers Book\" class=\"wp-image-26264\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/03\/Gas-Management-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/233171\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-652x1024.jpg\" alt=\"Become A Shearwater Power User Book\" class=\"wp-image-26382\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-978x1536.jpg 978w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook-95x150.jpg 95w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/Shearwater-Gradient-Factors-ebook.jpg 1200w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/111242\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg\" alt=\"\" class=\"wp-image-26656\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/COVER-IMAGE.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/262907\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg\" alt=\"A Comprehensive Guide to Backplate &amp; Wing BCDs\" class=\"wp-image-26808\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/07\/BPW-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/buymeacoffee.com\/andydavistech\/e\/260377\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"652\" height=\"1024\" src=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg\" alt=\"Diving Psychology The Path to Proficiency: Mental Strategies for Scuba Divers (eBook)\" class=\"wp-image-26633\" srcset=\"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-652x1024.jpg 652w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-191x300.jpg 191w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-768x1206.jpg 768w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image-96x150.jpg 96w, https:\/\/scubatechphilippines.com\/scuba_blog\/wp-content\/uploads\/2024\/05\/The-Path-To-Proficiency-Book-Cover-Image.jpg 794w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Diving-ascent-rate-FAQ\"><\/span>Diving ascent rate FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1682662094466\"><strong class=\"schema-faq-question\">What does ascent mean in scuba diving?<\/strong> <p class=\"schema-faq-answer\">An ascent in scuba diving is when a diver leaves the bottom and returns to the surface. It is common to conduct safety or decompression stops during the ascent.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1682662111374\"><strong class=\"schema-faq-question\">What happens if divers ascend too fast?<\/strong> <p class=\"schema-faq-answer\">If a scuba diver ascends too fast, nitrogen bubbles can form in their body. This is known as decompression sickness (DCS), or &#8220;the bends&#8221;.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1682662130617\"><strong class=\"schema-faq-question\">What is a normal ascent?<\/strong> <p class=\"schema-faq-answer\">A normal ascent in scuba diving involves traveling to the surface at a safe speed. Divers usually conduct a safety stop in shallow water. This differs from emergency ascents or decompression stop ascents.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1682662149488\"><strong class=\"schema-faq-question\">What is the meaning of the ascent rate?<\/strong> <p class=\"schema-faq-answer\">The ascent rate in scuba diving refers to the speed (m\/min or ft\/min) at which a diver travels to the surface. A safe ascent rate allows the diver to decompress and release excess nitrogen gas before surfacing. This helps prevent decompression sickness.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1682662171803\"><strong class=\"schema-faq-question\">What is a safe ascent rate in scuba diving?<\/strong> <p class=\"schema-faq-answer\">A safe ascent rate is slow enough to avoid harmful bubble formation, but fast enough to promote nitrogen removal from the body. 9m\/min (30ft\/min) was shown to be optimal in scientific study.<\/p> <\/div> <\/div>\n<p id=\"rop\"><small>Originally posted 2013-10-16 15:05:50. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn the best ascent speed for scuba diving. Contrary to assumptions, slower is not always safer when it comes to diving ascent rate!<\/p>\n","protected":false},"author":2,"featured_media":22064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1826],"tags":[48,197,8,5,27,496,13,7],"class_list":["post-3584","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-to-guide-diving","tag-ascent-stops-in-scuba-diving","tag-decompression","tag-recreational-diving-tips","tag-scuba-diving-advice-and-tips","tag-scuba-diving-ascent","tag-scuba-diving-safe-ascent-speed","tag-scuba-diving-tips","tag-technical-diving-advice"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Best Ascent Speed for Scuba Diving<\/title>\n<meta name=\"description\" content=\"Learn the best ascent speed for scuba diving. 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Former Royal Air Force officer. 30+ years of high-level global dive experience. https:\/\/scubatechphilippines.com\/scuba_blog\/andy-davis-technical-diving\/","sameAs":["https:\/\/scubatechphilippines.com","https:\/\/facebook.com\/ScubaTechPhilippines","https:\/\/www.instagram.com\/andydavistechnicaldiving\/","https:\/\/www.linkedin.com\/in\/andrewdavis7\/","https:\/\/www.pinterest.ph\/andydavistechnicaldiving\/","https:\/\/x.com\/DivePhilippines","https:\/\/www.youtube.com\/AndyDavisTechnicalDiving"],"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/author\/andy-davis\/"},{"@type":"Question","@id":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662094466","position":1,"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662094466","name":"What does ascent mean in scuba diving?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"An ascent in scuba diving is when a diver leaves the bottom and returns to the surface. It is common to conduct safety or decompression stops during the ascent.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662111374","position":2,"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662111374","name":"What happens if divers ascend too fast?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"If a scuba diver ascends too fast, nitrogen bubbles can form in their body. This is known as decompression sickness (DCS), or \"the bends\".","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662130617","position":3,"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662130617","name":"What is a normal ascent?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A normal ascent in scuba diving involves traveling to the surface at a safe speed. Divers usually conduct a safety stop in shallow water. This differs from emergency ascents or decompression stop ascents.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662149488","position":4,"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662149488","name":"What is the meaning of the ascent rate?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The ascent rate in scuba diving refers to the speed (m\/min or ft\/min) at which a diver travels to the surface. A safe ascent rate allows the diver to decompress and release excess nitrogen gas before surfacing. This helps prevent decompression sickness.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662171803","position":5,"url":"https:\/\/scubatechphilippines.com\/scuba_blog\/best-ascent-speed-scuba-diving\/#faq-question-1682662171803","name":"What is a safe ascent rate in scuba diving?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"A safe ascent rate is slow enough to avoid harmful bubble formation, but fast enough to promote nitrogen removal from the body. 9m\/min (30ft\/min) was shown to be optimal in scientific study.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/posts\/3584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/comments?post=3584"}],"version-history":[{"count":0,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/posts\/3584\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/media\/22064"}],"wp:attachment":[{"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/media?parent=3584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/categories?post=3584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scubatechphilippines.com\/scuba_blog\/wp-json\/wp\/v2\/tags?post=3584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}