Because **** it pressure gauges aren't that accurate anyway. A pattern I'm pretty annoyed no one ever told me about.ġ bar = 14.5 psiBut for math in our head let's call it 1 bar = 15 psi. If it was my strong suit I'm sure I would have noticed the pattern much, much quicker than the two 90 minute dives it took me today. Instead, every 20 minutes or so, I wound up doing math in my head. I could have just gone lazy about it and just trusted that my 5 minute switches were keeping the tanks even enough. But it's rare that I have to convert so frequently on the fly as I did today, constantly switching sidemount regs and making sure that my tanks were balanced. I've grown very comfortable switching between the two for gas planning purposes, so talks on the surface were a piece of cake. What's more, in our team we had some people who are used to metric and some used to imperial. Which is in a different format than the SPG on my right tank. Had to resort to the spare sidemount SPG on my left tank. Because I forgot my Teric (again) and, therefore, couldn't use my fancy transmitter. So today I wind up with a sidemount pressure gauge in bar and one in psi. Because I've simply accepted that it is so. You don't see me screaming about how gravity is corny and that we never got a sequel for Buckaroo Banzai, do you? No.

Whether you like it or not is irrelevant. Americans, let's take it as a given that the whole rest of the world uses metric.

2 6 bar in psi