Elastic potential energy calculator

Elastic energy = ½ × spring constant × displacement².

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Spring constant (N/m)

Displacement (m)

Answer

…

Elastic energy = ½ × spring constant × displacement².

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Formula and assumptions

Assumes an ideal linear spring; displacement is measured from its unstretched length.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Elastic potential energy calculator

Elastic energy = ½ × spring constant × displacement².

Assumes an ideal linear spring; displacement is measured from its unstretched length.

Next: Spring constant calculator

A worked example

With spring constant (n/m) = 100, displacement (m) = 0.2, the elastic energy (j) is 2.

Before you use the result

Assumes an ideal linear spring; displacement is measured from its unstretched length.

Example results for spring constant (n/m)

These examples use Displacement (m): 0.2. They are reference calculations, not recommended settings.

Spring constant (N/m)	Elastic energy (J)
50	1
100	2
200	4

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