Technical Diving Calculations

What is Technical Diving?

Technical diving involves diving beyond recreational limits, going deeper, longer, or in different environments. It requires specialized equipment, training, and gas mixtures.

These calculators provide necessary information for your technical dive planning, but should not be used without proper training and certification.

Maximum Operating Depth (MOD) Calculation

Maximum Operating Depth (MOD) calculates the safe maximum diving depth for a specific gas mixture. This is determined by the pO2 limit value to prevent oxygen toxicity risk.

O2 percentage in the mixture (e.g., 32 for Nitrox 32).
Limit value (typically between 1.4-1.6 bar).
Equivalent Narcotic Depth (END) Calculation

Equivalent Narcotic Depth (END) calculates the narcotic depth you would feel as if diving with air, while actually diving with a trimix mixture at a specific depth.

Planned diving depth.
O2 percentage in the mixture.
He percentage in the mixture.
Optimal Gas Mixture (Best Mix) Calculation

This calculator determines the most suitable Trimix gas mixture for a specific diving depth. It calculates ideal O2 and He percentages based on maximum pO2 and END limits.

Your planned diving depth.
Oxygen limit (typically 1.4 bar).
Narcotic depth limit (typically 30m).
CNS Oxygen Toxicity Tracking

Calculate the Central Nervous System (CNS) oxygen toxicity based on partial pressure of oxygen (pO2) and exposure time. This helps track your oxygen exposure during dives.

Diving depth.
O2 percentage in the mixture.
Time spent at this depth.
Multi-Level Dive Planning

Plan a multi-level dive with different depths, times, and gas mixtures. This advanced feature helps technical divers optimize their dive profiles.

Segment 1 (Bottom)
Segment 2 (Ascent/Travel)

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