How to use this:
Deco Planner runs the same decompression models as the desktop planners (Buhlmann-GF, VPM-B) directly in your browser. Treat results as candidates, not a final plan — cross-check against your trusted desktop planner or tables, and never deviate from your training. This tool can be wrong.
Algorithm & conservatism
Surface breathing rate. ~28 L/min ≈ 1 cu ft/min — a conservative recreational default.
Tip
Defaults give a conservative trimix profile (GF 20/80). Raise GF Low for slower bottom unloading, raise GF High for steeper final ascent. ppO₂ 1.6 is standard deco; drop to 1.4 for rec.
Bottom gases
| Label | fO₂ | fHe |
|---|
Deco gases
| Label | fO₂ | fHe |
|---|
Dive segments
| Kind | Depth(s) (m) | Gas | Time (min) |
|---|
Descent / ascent segments take a start → end depth. Flat segments take a single depth. Pick a different gas per segment to plan travel gases.