Equivalent Narcotic Depth Calculator

The Equivalent Narcotic Depth (END) Calculator helps technical divers estimate the narcotic impact of a given gas mix. By calculating END, divers can better understand and mitigate the effects of nitrogen narcosis, leading to safer and more informed dive planning.

Loading settings...

Explore More Dive Tools

Best Gas Mix Calculator - Find the optimal gas mix for your planned depth by calculating the best oxygen percentage to maximize safety and efficiency.
MOD Calculator - Calculate the Maximum Operating Depth (MOD) for your breathing gas mixture, based on the planned oxygen percentage and partial pressure limit.
NDL Calculator - Calculate your No-Decompression Limit (NDL) based on depth to plan safe dive profiles within non-decompression limits.

Important Warning: The calculators provided on this page are intended for reference purposes only. While we strive for accuracy, divers are strongly advised to verify the output of these calculators independently before use. Always double-check calculations and consider all safety factors relevant to your specific diving conditions and experience level. Diving without proper verification and planning can be dangerous. Dive safely and responsibly.