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Mechanical Energy Calculator

Total mechanical energy (kinetic + potential) of an object and how it converts between the two.

Enter values

Results update as you type.

Result

Total mechanical energy

748.4 J

Kinetic energy
160 J
Potential energy
588.4 J
Max speed (all PE → KE)
17.3 m/s
Max height (all KE → PE)
15.26 m

About the Mechanical Energy Calculator

Total mechanical energy (kinetic + potential) of an object and how it converts between the two.

Also known as: total mechanical energy, ke plus pe, conservation of energy.

How to use this calculator

  1. Enter mass, velocity, height.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

E = KE + PE = ½mv² + mgh

Worked example

Using the values pre-filled in the calculator above:

  • Mass = 5 kg
  • Velocity = 8 m/s
  • Height = 12 m

the calculator returns:

  • Total mechanical energy: 748.4 J
  • Kinetic energy: 160 J
  • Potential energy: 588.4 J
  • Max speed (all PE → KE): 17.3 m/s