Kinetic Energy

Calculate classical kinetic energy for a moving object.

How this calculator works

Enter the values for first value, second value and review the units before calculating.

Formula / method

KE = ½mv²

Worked example

A 10 kg object moving at 20 m/s has 2,000 J of kinetic energy.

Assumptions and limitations

The speed is well below the speed of light and mass is constant.

Relativistic effects are not included; use a relativistic model at extreme speeds.