What is the purpose of a dive table?

The purpose of a dive table is primarily to determine no-decompression limits and required surface intervals. Dive tables provide divers with essential information about how long they can stay at various depths without needing to perform decompression stops during ascent. They help divers plan their dives to ensure safety by avoiding the risk of decompression sickness, which occurs if a diver ascends too quickly or exceeds no-decompression limits.

Dive tables calculate safe dive profiles based on depth and time, allowing divers to understand the necessary surface intervals before subsequent dives to prevent nitrogen buildup in the body. This knowledge is fundamental for safe diving practices and is critical for divers to plan their underwater adventures responsibly.