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Hooke's Law Calculator

Hooke's Law Calculator

Variable Legend

F= force (N)k= spring constant (N/m)x= displacement from equilibrium (m)PE= elastic potential energy (J)

Force

Restoring force exerted by the spring.

Spring constant

Stiffness of the spring — force needed per unit stretch.

Displacement

How far the spring is stretched or compressed.

Elastic potential energy

Energy stored in a compressed or stretched spring.

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Pro Tip

Always verify your input values before calculating. For hookes law, small input errors can compound and significantly affect the final result.

Difficulty:Intermediate

Did you know?

Robert Hooke discovered this relationship in 1678. He first published it as an anagram ("ceiiinosssttuu") to protect his priority — decoded it means "ut tensio, sic vis" (as the extension, so the force).

Mathematically verified
Reviewed May 2026
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