SAC Rate Scuba

SAC Rate Scuba is a paid, offline manual reference calculator for scuba divers and instructors who want transparent gas math without spreadsheets, web calculators, or live device pairing.

Use it to:
- estimate SAC pressure rate and surface RMV from dive data and a selected cylinder
- backsolve gas needed and minimum start pressure from surface RMV, depth, time, and reserve
- estimate cylinder runtime from surface RMV, depth, start pressure, and reserve
- switch between imperial and metric units plus salt or fresh water assumptions
- review transparent formulas while keeping every input manual and local

Important:
SAC Rate Scuba is manual reference only. It does not replace a dive computer or formal dive planning. The app does not provide decompression planning, no-decompression limits, GPS or dive logging, live tank integration, emergency decision support, or certification guidance.