TecDiveTools
SAC Rate Calculator
Compute your Surface Air Consumption (SAC) rate using average depth, starting and ending cylinder pressure, and total dive time. Assumes a cylinder size of your choice and ambient pressure from depth (P = 1 + D/10).
Inputs
Pressure unit
bar
psi
Average depth (m)
Start pressure (bar)
End pressure (bar)
Dive time (min)
Cylinder preset
12 L steel
15 L steel
AL80 (11.1 L)
AL100 (13.2 L)
AL40 (5.7 L)
Custom
Cylinder size (L)
Compute
Fill the inputs and compute to see your SAC.