This calculator can be used to find the equivalent narcotic depth (END) in metres of the provided fraction of helium (FHe) at various planned diving depths in metres when using Trimix or Heliox. Just enter values for "Fraction of Helium (FHe)" and "Planned Depth".

Planning to upgrade your certification level? Want to brush up on your dive theory before you take the final exam? This calculator will help you prepare for the exam to obtain your certification!

The only application on Google Play that includes COMPREHENSIVE EXPLANATIONS and theoretical FORMULAS !

It’s quick and super easy to use! Get it now and make planning your dive easier!

And, don't forget to check my profile for other useful scuba tools!

***DISCLAIMER*** Proper training and certification such as PADI or SSI is required to dive anywhere on earth. If you have not received training in scuba diving, you should not attempt to use any of these results. An improper use can result in a serious injury!

- Lollipop Tip: touch and hold the recent apps button to call out menu.