Kinetic energy Calculator

Free kinetic energy calculator to calculate kinetic energy. Instant results in your browser — no signup.

JavaScript is required for live calculation.

You can still read how Kinetic energy Calculator works, the formula, examples, and FAQs below.

Direct calculator

Inputs

Mass (kg)

Velocity (m/s)

Results update when you click Calculate.

Kinetic energy

250.0000 J

KE = ½mv² = 0.5 × 5.0000 × 10.0000² = 250.0000 J

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Free kinetic energy calculator to calculate kinetic energy. Instant results in your browser — no signup. KE = ½mv² (joules).

KE = ½mv² (joules).

5 kg at 10 m/s → 250 J.

Units?+

Use kg and m/s for joules.