You can use these calculators to calculate weight-belt, gas consumption, MOD, SAC, and more..

**Saltwater Weightbelt Calculation Sheet
**

Fill in your weight and your fresh water belt weight.
Press then Calculate Button
That's It! Your answer will appear automatically!

**Gas Consumption
**

This script calculates a diver's theoretical gas consumption based on his SAC (CU.FT./Min.), dive time (Min.), and depth (Ft.).

**MOD Calculator
**

This script calculates a MOD based on a mix (FO2) and max. po2 (PO2).

**Partial Pressure
**

This script calculates the partial pressure (ata.) of a gas, given it's fraction of the total gas, and the depth (feet).

**SAC Calculator
**

This script calculates a diver's SAC rate, in Cubic Feet per Minute, based on his average depth, length of time at that depth, how many PSI of gas were used, and the size of his tank.

**Same Air
**

This script calculates a diver's theoretical air consumption based on a typical dive profile.

**Tank Volume
**

This script calculates a the volume of gas (CU. FT. @1atm.) in a tank of a given rating (CU.FT at PSI) when it contains a given pressure (PSI).