Units of Measure in Diving?

[Kern]

For those unfamiliar with SI (Système International d'unités), commonly called the Metric System, here are some conversion factors:

One Standard Atmosphere equals:

SI Units
101,325 Pascals
101.325 KPa or Kilo Pascals or 1000x
0.101325 MPa or Mega Pascals or 1 Million x
1.01325 Bar
10.0627586096078 Meters of Sea Water
Imperial Units
14.695948775 PSI
33.899524252 Feet of Fresh Water at 4° C
33.014299900156 Feet of Seawater based on a density of 64.1 Lbs/Ft³​

1 bar = 100,000 pascals
1 atm = 101,325 pascals

 

[redacted]

Weights are always pounds. Depth is meters half the time and feet the other half (two computers, not setable). Pressure is usually psi but I do have one SPG in bars.

 

[Sas]

I use metres, bar and pounds. Most of my weights are in pounds so I tend to use that instead of kg when writing down my weight.

I have no problems switching to imperial though (even though metric is superior), and would depending on who I was diving with. In Fiji me and my buddy were the only non Americans on our boat most of the time and they gave dive briefings using imperial.

 

[thanksforallthefish]

I use metres, bar and pounds. Most of my weights are in pounds so I tend to use that instead of kg when writing down my weight.

I have no problems switching to imperial though (even though metric is superior), and would depending on who I was diving with. In Fiji me and my buddy were the only non Americans on our boat most of the time and they gave dive briefings using imperial.

+1 for metres, bar and pounds

 

[juanfr22]

Meters, Celcious degrees, Bars and grams.

 

[MartianBeerPig]

i use metric unless i'm diving in north america whereupon i switch to imperial during actual dive time. then convert to metric for my log. i remember seeing my first american dive buddy's eyes bulge out of his head when i showed my gauge displaying 170bar. it took him a second to realise it wasn't in psi

 

[Thalassamania]

Actually I prefer to have my volumes in megaparsec barns and my depths in rods and furlongs.

 

[nielsent]

As a scientist, I expect to see meters, kilograms, pascals/bar/atm, liters
As an Ameture machinist and mechanic, its all in feet, pounds, psi, and cubic feet.
As a barfly and occasional crazy. I prefer my measurments in slugs, hands, cubits, cables, leagues, fathoms, hogsheads, pecks, bushels, pints, quarts, and occasionally, eyeballed, as the keg's tapped, or as the crow flies.

 

[Thalassamania]

You forgot gills ...

 

[Tigerman]

Actually I prefer to have my volumes in megaparsec barns and my depths in rods and furlongs.

Been doing the kessel-run lately?

Im all metric, since well, I live in a part of the world thats not holding on for its bare life to feet and inches because we "dont have a relationship to meters"