This collection of formulas aims to be a guide for engineering students interested in the different aspects of fire-safety engineering. It is not intended for use by persons untrained or without prior knowledge of fire-safety engineering and should not be considered a text book. The book covers the basic concepts and formulas in fire dynamics and smoke mamagement, structural fire-safety as well as dimensioning of emergency exits and fire-safety installations. Additioinally, core formulas in topics like explosions and heat transfer can be found.