Kinetic Energy Calculator
A moving object carries kinetic energy KE = ½mv². Enter any two of energy, mass, and speed to find the third, with unit conversion and full working.
Kinetic Energy Calculator
How to interpret the result
Energy grows with the square of speed: doubling speed quadruples the kinetic energy. That is why a small rise in driving speed makes collisions so much more destructive — the energy the brakes or crumple zones must absorb scales as v².
Assumptions
- Object treated as a point mass (no rotation)
- Speeds far below the speed of light (non-relativistic)
- Velocity entered as speed (magnitude)