About the Spring Energy Calculator
Elastic potential energy stored in a spring (½kx²) and the restoring force from Hooke's law.
Also known as: hookes law calculator, elastic potential energy, spring force.
How to use this calculator
- Enter spring constant, displacement.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
E = ½kx² · F = −kx
Worked example
Using the values pre-filled in the calculator above:
- Spring constant = 500 N/m
- Displacement = 0.2 m
the calculator returns:
- Elastic energy: 10 J
- Restoring force: 100 N
- Energy at double displacement: 40 J