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Scuba Calculators > Surface Air Consumption
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Surface Air Consumption (SAC) & Respiratory Minute Volume (RMV) Calculator

This calculator determines a scuba diver's SAC and RMV rate based on the average depth, bottom time, gas used, and tank size. A diver's air consumption rate can be expressed in terms of either pressure (SAC = PSI/bar per minute) or volume (RMV = cubic feet/liters per minute).

Average Depth (m):    
Bottom Time (min):    
Air Used (bar):    
Tank Volume (L):    
Tank Pressure (bar):