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Hooke's Law Calculator

Use Hooke's law to find a spring's force, spring constant or stretch, plus the elastic energy it stores.

Spring force

10 N

Spring force (kN)
0.01 kN
Spring force (lbf)
2.24809 lbf
Spring force (kgf)
1.01972 kgf
Elastic potential energy (½kx²)
0.25 J

Show the work

  1. Stretch or compression in m

    m = cm × 0.01

    5 × 0.01 = 0.05 m

  2. Spring force from the two you know

    F = k × x

    200 × 0.05 = 10 N

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