Dive Centres & Instructors in Koh Chang, Thailand

TecDiveTools is a free toolkit for recreational and technical divers: a SAC rate calculator, NDL planner, Dalton's Law (PO₂/FO₂/depth) calculator, Buhlmann deco and gas planner, and an equivalent narcotic depth calculator.

Alongside the calculators, TecDiveTools maintains a directory of dive centres and instructors in Thailand, focused on Koh Chang, searchable by certification agency (TDI, SDI, PADI, IANTD, GUE, and more), course, and rebreather support — helping divers find technical and recreational instruction near their destination.