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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.

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.

Mechanical Energy 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