Nitrox Dive Planner

Calculate your Maximum Operating Depth and Best Gas Mix

Disclaimer: These calculators are for informational and educational purposes only and are not intended to replace formal training in dive planning and safety. Always verify calculations with certified dive tables or dive computers.

Best Gas Mix (EANx)

Calculate the best nitrox mix for your planned depth.

Maximum Operating Depth

Calculate MOD for your nitrox mix.

How It Works

Best Gas Mix Formula

MOD in ATA = (MOD / 33) + 1

Best Mix = PPO2 / MOD_ATA

Result = Rounded up to nearest whole %

MOD Formula

MOD = ((PPO2 / FO2) - 1) x 33

Result = Rounded to nearest whole foot

Learn more about nitrox dive planning in our comprehensive guide.