Dive Decompression Calculator
Estimate no-decompression limits, safety stop requirements, and surface intervals for recreational dives.
How to Use the Dive Decompression Calculator
- Enter the maximum depth of your dive in meters.
- Enter the planned bottom time in minutes.
- Click Calculate to see NDL remaining, safety stop requirement, and surface interval.
使用场景
- •Pre-dive planning for recreational scuba divers.
- •Educational use in open-water dive courses.
- •Understanding decompression theory for dive instructors.
公式
Formula: NDL values from simplified PADI/NAUI recreational dive tables. Safety stop required for dives deeper than 10m. Surface interval = depth × 1.5 + overtime penalty.
常见问题
What is a no-decompression limit?
The NDL is the maximum time you can spend at a given depth without requiring mandatory decompression stops during ascent. Exceeding it requires staged decompression.
When is a safety stop required?
A 3-minute safety stop at 5m is recommended for all dives deeper than 10m. It significantly reduces the risk of decompression sickness.
Is this calculator safe to use for real dives?
This is an educational tool using simplified tables. Always use a certified dive computer and follow your dive agency's tables and guidelines underwater.