Maximum Depth Calculator for Scuba Diving

This calculator helps determine your maximum safe depth for scuba diving based on your tank pressure, breathing rate, and tank volume. It considers factors like oxygen toxicity and nitrogen narcosis to ensure safe diving practices.

Input Parameters

Calculation Results

Calculation Results

Maximum Safe Depth: -- ft

Bottom Time: -- minutes

Surface Supply: -- cu ft

Oxygen Toxicity Limit: -- minutes

Safety Notes

These calculations are for informational purposes only. Always consult with a certified dive professional before planning any dive.

Calculation Formula

Max Depth = (Tank Pressure - Surface Pressure) / 14.7 * (Tank Volume / (Breathing Rate * Dive Time))

Where:
- Tank Pressure: Absolute pressure in PSI
- Surface Pressure: 14.7 PSI (at sea level)
- Tank Volume: Total volume of gas in the tank
- Breathing Rate: Cubic feet of gas used per minute
- Dive Time: Duration of the dive in minutes

Maximum Depth Calculator for Scuba Diving Calculator Usage Guide

Learn how to use the Maximum Depth Calculator for Scuba Diving and understand its working principles

How to Use This Calculator

  1. Enter your tank pressure in PSI (pounds per square inch)
  2. Input the volume of your tank in cubic feet
  3. Specify your breathing rate in cubic feet per minute
  4. Enter the surface water temperature in degrees Fahrenheit
  5. Set your planned dive time in minutes
  6. Choose your oxygen limit (default is 1.6 ATM for 12% oxygen)
  7. Click the "Calculate" button to get your maximum safe depth

Understanding the Results

  • Maximum Safe Depth: The deepest depth you can safely reach with your current tank and breathing rate, considering oxygen toxicity limits.
  • Bottom Time: The theoretical time you can stay at the maximum depth with the given tank volume and breathing rate.
  • Surface Supply: The total amount of gas you will consume during the dive.
  • Oxygen Toxicity Limit: The maximum time you should spend at the maximum depth to avoid oxygen toxicity effects.

Important Safety Notes

This calculator provides theoretical calculations and should be used as a guide only. Always:

  • Consult with a certified dive professional before planning any dive
  • Consider local dive conditions and experience level
  • Use appropriate dive tables or dive computers for real-time monitoring
  • Never exceed safe depth limits for your experience level
  • Be aware of nitrogen narcosis at deeper depths