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Online Elastic Potential Energy Calculator

Calculate elastic potential energy U = ½kx² (spring: k = spring constant, x = displacement).

Frequently Asked Questions

What is k?
Spring constant (stiffness), in N/m. Higher k means stiffer spring.
What is x?
Displacement from equilibrium (stretch or compression), in meters.
Units?
Use SI: k in N/m, x in m; U will be in joules (J).

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