Dive Planning


To ensure safe diving operations all dives must be planned. The planning of diving operations includes (as a minimum) calculation of:

  • the No Decompression Limit (NDL)
  • Decompression obligations
  • Gas consumption calculations

Historically tables developed by different dive training organisations were used to plan dives. More recently dive planning applications and software have replaced the traditional tables.


The purpose of this website is to publish existing diving tables in a user friendly website


The scope of this website covers the following diving tables: