Scuba Calculators & Dive Tools
Whether you're diving air or Nitrox, planning cold water dives, or preparing for travel, these calculators can help you plan smarter and dive safer. Use our interactive tools to calculate MOD, estimate reserve gas, track your RMV, pack efficiently, and more. Built for recreational divers with real-world needs—no fluff, just reliable planning.
These calculators are designed to help you make safe, informed, and efficient dive plans. All tools use standard assumptions and are intended for educational use only—not as a substitute for formal training or real-world checks.
MOD Calculator
Find your maximum operating depth based on your Nitrox mix and PO2 limit.
Minimum Reserve Gas Calculator
Plan the minimum gas required for you and your buddy to ascend safely from your planned depth.
RMV / SAC Rate Calculator
Calculate your gas consumption rate from dive log data to improve your planning accuracy.
Buoyancy Estimator
Estimate the ballast you’ll need based on exposure suit, tank type, and water type.
Packing Weight Estimator
Total your dive gear weight and decide what to carry on vs. check for flights.
These calculators are for planning and education purposes only. Always dive conservatively and verify your plan with a certified dive professional when needed.