1. What is the Scuba Dive Time Calculation?

The Scuba Dive Time calculation estimates how long a diver's air supply will last based on their air volume and consumption rate. This is crucial for dive planning and safety.

2. How Does the Calculator Work?

The calculator uses the basic dive time equation:

Where:

• \( Air\_Volume \) — Total available air in tank (L or cu ft)
• \( Consumption\_Rate \) — Air consumption rate (L/min or cu ft/min)

Explanation: The equation calculates how many minutes of air you have by dividing your total air volume by your consumption rate.

3. Importance of Dive Time Calculation

Details: Accurate dive time estimation is crucial for dive planning, safety stops, and ensuring you have enough air for your planned dive and emergencies.

4. Using the Calculator

Tips: Enter your tank's air volume and your estimated consumption rate. Make sure to select matching units (both metric or both imperial) for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: How do I know my consumption rate?
A: Measure your air used during a dive divided by dive time. Beginners typically use 20-30 L/min, experienced divers 15-20 L/min.

Q2: What factors affect dive time?
A: Depth, exertion, experience, water temperature, and equipment all affect consumption rate.

Q3: Should I include a safety margin?
A: Yes! Always plan to surface with at least 500 psi (35 bar) remaining in your tank.

Q4: How does depth affect air consumption?
A: Air consumption increases with depth - at 30m you'll use 4x more air than at the surface.

Q5: What's the rule of thirds?
A: Many divers use 1/3 of air for outward journey, 1/3 for return, and keep 1/3 in reserve for emergencies.