Plan Your Dive — Recreational and Technical
TAG Helix is a free online dive planner powered by the Bühlmann ZHL-16C decompression algorithm with configurable gradient factors. Plan recreational no-stop dives, nitrox dives, and full technical decompression dives. Calculate NDL limits, decompression stops, gas consumption, MOD, CNS oxygen toxicity, and OTU exposure.
Features: Visual decompression profiles · Bühlmann ZHL-16C · Gradient factor (GF Low / GF High) · Nitrox and trimix gas planning · SAC rate calculator · CNS and OTU tracking · Gas consumption calculator · Technical dive planning · Recreational dive planning
JavaScript is required to use the interactive planner. Please enable JavaScript in your browser.