Nitrox Calculator

This calculator is a tool to assist Certified Nitrox Divers with their calculations of PO2, EAD, MOD and other values.

How to use: You may change any items that are bold. The form allows you to enter your Actual/Desired Depth, Desired Pressure in Atmospheres Absolute (ATA) or your Desired Equivalent Air Depth only. Calculations can be made in Feet or Meters for either Fresh Water or Salt Water. The Oxygen percentage for the calculations can be varied from Air (21%) through 50%, and your Maximum Partial Pressure of Oxygen at depth can be varied from 0.4 ata to 2.0 ata.

Depths in: FSW FFW MSW MFW   
Feet (F) or Meters (M); Salt Water (SW) or Fresh Water(FW)
Percent Oxygen
Percent Nitrogen
Maximum PO2
Contingency Max. PO2
Actual or Desired Depth
Atmospheres Absolute (ATA)
Equivalent Air Depth (EAD)
Maximum Operating Depth (MOD)
Maximum Contingency Depth
Partial Pressure of Oxygen (PO2)
Partial Pressure of Nitrogen (PN2)
"Best Mix"
  

WARNING! THIS INFORMATION SHOULD NOT BE RELIED UPON FOR DIVE PLANNING! YOU SHOULD CONSULT AN APPROPRIATE PROFESSIONAL FOR SPECIFIC ADVICE TAILORED TO YOUR DIVE! DiveLogin.com shall not be responsible for injury resulting in the use of these calculators.