Kinetic Energy Calculator
Kinetic energy from mass and velocity.
kg
m/s
Formula: KE = ½mv²
Worth Knowing
Kinetic energy scales with the square of velocity, which is the single most important and underappreciated fact in road safety: doubling your speed quadruples the energy that has to be dissipated in a crash, and quadruples the braking distance. That squared relationship is why the jump from 50 to 70 km/h is far more dangerous than it feels. Mass matters too, but only linearly, so speed is by far the bigger lever on impact energy.
How to Use
- Enter Mass into the first field of the Kinetic Energy Calculator.
- Fill in the rest: Velocity.
- Your result appears instantly as you type — there's no submit button or page reload.
Formula
KE = ½mv²