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Elastic Spring Energy & Extension Calculator

E = ½kx² — elastic potential energy stored in a spring.

Calculates the elastic potential energy stored in a spring and the restoring force using Hooke's Law from spring constant and extension.

Dr. Helena Ortiz By Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

E = ½ × k × x²; F = k × x

In depth

Calculates the elastic potential energy stored in a spring and the restoring force using Hooke's Law from spring constant and extension.