Scuba Calculators
Surface Air Consumption (SAC) & Respiratory Minute Volume (RMV) Calculator
This calculator estimates 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 (ft)
Average Depth (ft)
Bottom Time (min)
Bottom Time (min)
Air Used (psi)
Air Used (psi)
Tank Rated Volume (cf)
Tank Rated Volume (cf)
Tank Rated Pressure (psi)
Tank Rated Pressure (psi)