Scuba Diving Tables Calculator
Plan your dives safely with our advanced calculator based on international standards
Dive Results
Current Dive Information
Depth: 18 meters | Bottom Time: 35 minutes
Safety Level: Conservative (5 min buffer)
Within no-decompression limits with 16 minutes remaining
Mastering Dive Planning with a Scuba Diving Tables Calculator
Why Dive Tables Matter
A scuba diving tables calculator is essential for dive planning worldwide. Whether you're diving in Australia's Great Barrier Reef, Egypt's Red Sea, or Thailand's Similan Islands, understanding nitrogen absorption is crucial for your safety. These calculators help determine how long you can stay at depth without needing decompression stops.
Key Factors in Dive Calculations
Every scuba diving tables calculator considers:
Depth: Measured in feet or meters, depth dramatically impacts nitrogen absorption. Deeper dives require shorter bottom times.
Bottom Time: Total time from descent to beginning of ascent.
Surface Interval: Time on surface between dives allowing nitrogen release.
Pressure Group: Letter designation representing nitrogen in your body after a dive.
Using the Calculator
Our scuba diving tables calculator simplifies complex calculations:
1. Enter Depth: Select meters or feet based on your preference.
2. Set Bottom Time: Your planned time at maximum depth.
3. Choose Safety Level: Conservative settings add safety buffers.
4. Review Results: Pressure group, time limits, and safety margins.
Safety First
Always add a safety margin to your calculated bottom times. Conditions like cold water or strong currents increase air consumption and nitrogen absorption. Many professionals subtract 5-10 minutes from their no-decompression limit.
International Standards
While science is universal, different organizations have variations:
PADI (Worldwide): Recreational Dive Planner with conservative limits
BSAC (UK): Uses 88 tables with deeper depth categories
CMAS (Europe): Metric tables with different time increments
Our calculator supports these standards for divers worldwide.
Advanced Features
Beyond basic calculations, our scuba diving tables calculator offers:
Multi-level Planning: Calculate dives with varying depths
Altitude Adjustment: Automatic compensation for high-altitude dives
Gas Mixtures: Supports nitrox for technical divers
Visual Profiles: See nitrogen loading on easy-to-read charts