Kinetic Energy Calculator
KE = ½·m·v² • Unit conversion • Ajax loading • Live update
Enter values
Mass must be ≥ 0.
Velocity can be negative; KE uses v² so the result is non-negative.
Quick summary
Enter mass and velocity to calculate kinetic energy.
Results
Energy (J)
—J
Energy (kJ)
—kJ
Energy (Wh)
—Wh
Energy (kWh)
—kWh
Energy (ft·lbf)
—ft·lbf
Updating…
Action
Hard reset: cancels pending updates and clears everything on the first click.