Calculate your estimated surface consumption rate for recreational and technical open circuit scuba dives. SCR Calc allows you to calculate your consumption rate for typical open water single tank dives as well as for technical dives using doubles and multiple stages (which can be of differing sizes).

These estimates can then be used as a guide to educated dive planning, as well as for monitoring your personal progress as you develop as a diver.

Imperial and metric units are supported.

Surface consumption rate (SCR) is also known as RMV and SAC.