Calculators / Partial pressure and mixes

Joining two gas banks calculator

The pressure and oxygen percentage after two banks are opened to each other: an average weighted by gas volume.

Joining two banks

Weighted average by gas volume

METRIC

Bank 1 pressure (bar)Bank 1 water capacity (l)Bank 1 O2 %Bank 2 pressure (bar)Bank 2 water capacity (l)Bank 2 O2 %

The formula: Weighted average by gas volume. Change any box and the full working updates. For study only, never for dive planning.

Practise it the way the exam asks it

The IMCA ADS, BDS and LST papers ask this as a four-option question, with a calculator on screen. A free account gives you 15 practice questions for each exam, each with the worked answer and the document it comes from.

Start free All 33 calculators

More on partial pressure and mixes

Partial pressure and depth limits Equivalent air depth Gas density Mixing two gases Topping up a bank Partial pressure and depth limits (feet)Equivalent air depth (feet)