Converting Metric to Imp.

[AdTravels]

Hi all,

As I'm heading of to Central America next week I was wondering if they tend to use Metric or Imperial units when diving.
If it is mainly imperial is there an easy way to convert to metric.

I'm not too concerned over depth (I can do that one), it's the PSI thing I don't know. e.g. 200 bar = ?? psi Is there an easy way of doing this or should I just learn the equivalents.

Many thanks

Ad

 

[Walter]

Why do you need to convert? You can use the metric system regardless of which system the rest of the boat is using.

 

[JDostal]

Yes, just because the boat is using bar...doesn't mean you can't use PSI. However, 1 bar is equal to 14.5PSI (minor rounding taken into account there, it's actually about 14.503773773) but I believe 14.5 is a tad easier to work with =)

 

[nickjb]

15psi to a bar is even easier and probably more accurate than your SPG

200 bar is 3000psi (actually 2901)
50 bar is 750psi (actually 725)

 

[AdTravels]

Is that I will be working out there. And I believe that it would be usefull and polite to be able to communicate with imperial as well as metric users.

 

[WreckWriter]

http://www.rhodium.ws/chemistry/equipment/pressure.html

Tom

 

[Zept]

...which has all sorts of conversions plus a list of commonly required conversion factors.

http://www.ex.ac.uk/cimt/dictunit/dictunit.htm

Z

 

[Zept]

Or to go roughly from bar to psi, multiply by ten and add half as much again. So, 200 times 10 is 2,000 and half of that is 1,000, giving a total of 3000.... 200bar is roughly 3000psi.

Zept

 

[JDostal]

That's an even easier conversion Zept....works for me.

I just whipped out the TI-86 calculator that I haven't touched since my calculus and statistics days in school. It's got a whole nice little conversion menu on it that I can use to convert from any unit to any other unit of measure.

And, in regards to the start of this post, it would be really polite of you to be able to work in the same units of measure. After having lived in a few other countries myself (and had guests at my house) it is always nice when someone takes the effort to learn the local customs. It goes a long way!

 

[sheck33]

good practice for a group of divers to NOT mix imperial and metric units because of the possible confusion. Right now i dive metric because i think metric, when doing shallow (<100') diving with friends, no caves wrecks or any of that stuff it's fine BUT if i am going to do anything beyond that in a group i'll be wise to use imperial if the rest of the group uses imperial. Standardization in that case is good, actually i think standardization is good period:boom: