Gas planning
Compare depth and duration before you commit to a profile
Switch between estimating duration from depth or average depth from duration using a simple gas-use model.
Planning aid
Depth and duration relationship
Choose the unknown value and estimate it from available gas and SAC.
L/min
L
bar
bar
m
min
Usable gas
1800 L
Estimated answer
36 min
Planning boundary: Gas estimates are simplified planning aids. They do not calculate rock-bottom gas, buddy gas sharing, ascent requirements, workload spikes, current, stress, regulator performance, or emergencies.
Formula and source notes
For gas planning context, review DAN gas management discussion and confirm reserve rules with the operator or instructor.