Hooke's Law Calculator

Free online Hooke's Law calculator. Find the restoring force and elastic potential energy of a spring based on its extension.

Hooke's Law Calculator (Springs)

N/m
m

Restoring Force (F)

20Newtons

Elastic Potential Energy

2Joules (J)

What is Hooke's Law?

Hooke's Law states that the force needed to extend or compress a spring by some distance is proportional to that distance.

F = -k × x
  • F (Force): The restoring force exerted by the spring (Newtons).
  • k (Spring Constant): A measure of the spring's stiffness (N/m).
  • x (Extension): The distance the spring is stretched or compressed from its equilibrium (meters).