# Kinetic energy calculator

This calculator will help you calculate kinetic energy, mass or speed, depending on what initial data you have. Enter the known data in the appropriate fields, then click on the button of the desired value.

**Weight (kg)**

**Speed (m / s)**

**Kinetic energy (j)**

Kinetic energy formula :

This formula is valid for classical mechanics, and it is assumed that the speed of a material point is always much less than the speed of light.