Maximum Operating Depth

These calculators are provided as a quick reference, if you are not trained in the use of these gases please seek training and validate the answer before diving the mix.

This is the first instance of gas calculations for Nitrox divers, they are rough and ugly but they work.

This ONLY calculates in the range of recreation diving 21% to 40% with a partial pressure of 1.4 ATA

The formulas are provided and can be validated in any physics course books.
MOD = (PP02 / F02) * (33*100) – 33

Initial source provided by JavaScript Kit and then massively modified into gas calculations for Nitrox.

DescriptionData Entry
EanX %
Maximum Operating Depth MOD Calculated Depth in Feet
Enter only numeric values (no commas), using decimal points where needed.
Non-numeric values will cause errors.

This free script provided by
JavaScript Kit