Kinetic Energy of a 1,500 kg Car at 30 m/s

A 1,500 kg car traveling at 30 m/s (about 108 km/h) has a kinetic energy of 675,000 J (675 kJ).

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How to use this tool

Enter mass and speed in the fields above.
Results update instantly as you type — or click Calculate.
Read your kinetic energy and the full breakdown beneath it.

Calculate the kinetic energy of a typical car at highway speed — which must all be dissipated when braking.

Frequently asked questions

Why does speed have a larger effect than mass?: Because speed is squared. Doubling mass doubles KE; doubling speed quadruples it.
How do I convert km/h to m/s?: Divide by 3.6. For example, 90 km/h = 25 m/s.