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Kinetic / Potential Energy

KE = ½mv², PE = mgh — energy calculations

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Kinetic / potential energy calculator

Calculate KE = ½mv² or PE = mgh. Multi-unit output.

How to use this tool

  1. 1

    Pick mode

    Kinetic (½mv²) or potential (mgh).

  2. 2

    Enter values

    Mass, velocity, height as appropriate.

  3. 3

    See energy

    Joules + calories + BTU.

Frequently Asked Questions

Kinetic energy formula
KE = ½ × m × v². Mass in kg, velocity in m/s → Joules. KE scales quadratically with speed — double speed = 4× energy.
Potential energy formula
PE = m × g × h. On Earth g = 9.81 m/s². Raising a 10 kg mass by 1 m = 98.1 J of stored energy.

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