Plan your dive with confidence. This calculator uses the Bühlmann ZH-L16B algorithm to estimate no-decompression limits based on your depth, bottom time, and gas mix. Enter your details to see how long you can remain within NDL. If your plan exceeds those limits, the calculator will clearly show the required decompression stops.
You can save multiple variations of these calculations in your account and reuse them later during your trip for quick reference and comparison.
For more complex dives with multiple depths or gas changes, you can use the Multi-Level Dive Planner to build a full profile.
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