Diving Dictionary

Diving Dictionary

Scuba Diving Terms, Gear, How-to's and More

Dive Table

Definition

A dive table is a printed chart used to plan dives by estimating no-decompression limits and surface intervals based on depth and time.

More on Dive Table

Before dive computers became common, divers used printed dive tables to plan and execute safe dives. Tables, like those from PADI or NAUI, help determine how long a diver can stay at a given depth without exceeding no-decompression limits (NDLs). They also guide surface intervals and repetitive dive planning. While many divers now rely on computers, understanding dive tables reinforces decompression theory and is required during entry-level certifications.

Frequently Asked Questions

Locate your max depth on the table, then read across to find your allowable bottom time. After the dive, use residual nitrogen time and surface interval charts to plan subsequent dives.
Pressure groups indicate how much nitrogen remains in your body after a dive. They're used to plan surface intervals and repetitive dives.
Yes. Though dive computers are standard, understanding tables helps with redundancy, learning decompression theory, and planning emergency scenarios.
Both use similar principles but may have slightly different limits and formats. NAUI allows deeper safety stops and longer surface intervals.
No. Traditional air tables are calibrated for 21% oxygen. Nitrox dives require separate EANx tables or a dive computer that accounts for oxygen exposure.

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