Gas Calculator

Rule of thirds calculation and SCR-based penetration range.

Dive configuration

Cylinder size (L)

Starting pressure — Diver 1 (bar)

Starting pressure — Diver 2 (bar)

Starting pressure — Diver 3 (optional) (bar)

Range calculation (optional)

Enter your SCR (L/min at surface) to calculate maximum penetration time.

SCR (L/min surface)

Planned depth (m)

Gas plan — Rule of thirds

Team turn pressure

133 bar

Diver 1

Turn pressure

133 bar

Penetration gas

800 L

Exit gas

800 L

Reserve gas

800 L

Diver 2

Turn pressure

133 bar

Penetration gas

800 L

Exit gas

800 L

Reserve gas

800 L

The most limited diver controls the dive.

Gas planning must be verified by the instructor.

This tool is educational and does not replace training.