3 BAR TO PSI HOW TO

If, like me, math is not one of your strongest skills and these formulas are still a bit tricky, then it might be helpful to try to memorise some numbers. Bar to PSI Formula PSI to Bar Formula Multiply the amount in bar by 14.5Įxample: 100 bar x 14.5 = 1450 psi Divide the amount PSI by 14.5 Below are formulas to help you work these a little bit quicker. Hope you guys are ready for a bit of math.ġ BAR is equal to roughly 14.5037738 PSI (How’s your 14.5 timestables?)Īs you can see with these numbers, trying to do conversions in your head can be a little bit tricky. While working as a newly certified Divemaster, I asked my group of divers underwater how much air (Pressure) they had left, to which I got three expected replies and one very strange set of hand signals. After asking the diver to repeat their answer it was only then that I figured out this diver was using PSI hand-signals and not bar. Now, this is where the fun started, where I had to convert PSI measurements to bar in my head so I would know if the diver was low on air or if we could continue the dive. I can vouch for this from firsthand experience. It is also very good to know both units of pressure measurement.

3 BAR TO PSI HOW TO

This is why it is so important to know what these terms mean, and how to read your pressure gauge underwater. It will tell us using pressure measurements of bar or PSI. This means we need to know how much is in our tank at all times so we can plan our dive and decide when to go up safely.Ī submersible pressure gauge (SPG) will tell us how much gas/pressure is in our tank. What is Bar or PSI measurements used for?Īs scuba divers, we are breathing from our SCUBA unit, and relying on the gas inside our tanks/cylinders. These countries use what is called PSI or pounds per square inch (lb./in 2) for measuring pressure.Īs you can see from above, what system you learn to dive with will very much depend on where you learn to dive (or where your instructor is from!). From these countries, the USA unsurprisingly has the largest diving community. Imperial measurements are now only used by The United States of America, Myanmar and Liberia. Read More: Scuba Diving Tips for Beginners & Open Water Divers What is PSI Pressure? (Imperial)Īs well as the Metric system we have the Imperial system.

In fact, only three countries in the world don’t use this system (more on those later) so chances are you will be learning to use bar when you first start out scuba diving. This is the most commonly used system around the world in scuba diving. Pressure is the measure of force exerted on an object and bar is the measure of how much force is being exerted.īar is used by the metric system for measuring pressure Kilograms per square centimeter (Kg/cm 2). PSI pressure, what they are, the differences between them, and how it affects us while diving.įirst up is a bit of information on the two most commonly used ways of measuring pressure. What is Bar Pressure & PSI Pressure in Scuba Diving? Photo: Kris Mikael Krister / UnsplashĪs a scuba diver, you will certainly come across the terms ‘Bar’ and/or ‘PSI.’ But what exactly do they mean? Well, as a scuba instructor, I hear this question a lot, so here we are going to look at what is Bar pressure vs.

3 bar to psi