Kinetic Energy Calculator

Kinetic energy from mass and speed — or solve for either.

Runs in your browser — nothing is uploaded

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How to use Kinetic Energy Calculator

  1. Choose what to solve for (where offered).
  2. Enter the known values in SI units shown next to each field.
  3. Read the answer with conversions to common units.

Formula & assumptions

KE = ½ × m × v²