Kinetic Energy Calculator
Calculate the kinetic energy of a moving object from its mass and velocity.
—
Kinetic Energy
—
In Kilojoules
—
In Calories
Recent Calculations
What Is Kinetic Energy?
Kinetic energy is the energy an object possesses due to its motion. It depends on both mass and velocity.
Formula
KE = ½mv²Example
A 1000 kg car moving at 20 m/s has KE = ½ × 1000 × 20² = 200,000 J = 200 kJ.
Frequently Asked Questions
Why does velocity matter more than mass?
Kinetic energy depends on velocity squared. Doubling speed quadruples kinetic energy, but doubling mass only doubles it.
What happens to kinetic energy in a collision?
In an inelastic collision, kinetic energy converts to heat, sound, and deformation. In an elastic collision, kinetic energy is conserved.