Scuba Diving Calculators | Divemaster Austin
Free Tools

Scuba Diving Calculators

Field-tested tools built by a PADI Divemaster. Plan safer dives, dial in your gas mix, and nail your weighting — all in one place.

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Nitrox MOD Calculator
Find your maximum operating depth for any EANx mix and PPO2 limit. Supports imperial and metric.
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Scuba Weight Calculator
Estimate your starting weight based on wetsuit thickness, tank type, body weight, and water type.
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SAC Rate Calculator
Calculate your surface air consumption rate from any logged dive to predict air usage on future dives.
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Bar to PSI Calculator
Convert tank pressure between bar and PSI instantly. Includes common fill pressures for rentals and HP steel tanks.
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Safety Note: These calculators are tools to aid dive planning, not replacements for proper dive training. Always dive within your certification limits and consult a qualified instructor before attempting new dive types. No calculator replaces good judgment underwater.