# Elastic Potential Energy Calculator

> Calculate energy stored in a stretched or compressed ideal spring.

Page: https://askcalculators.com/calculator/elastic-potential-energy-calculator/
Definition: https://askcalculators.com/calculator/elastic-potential-energy-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/elastic-potential-energy-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/elastic-potential-energy-calculator/?springConstant=200&displacement=0.1

## Inputs
- springConstant: Spring constant k (N/m); type=number; required; default=200; min=0
- displacement: Displacement x (m); type=number; required; default=0.1

## Outputs
- energy: Elastic potential energy (J); format=number; primary
- force: Spring force magnitude (N); format=number

## Formula
elastic energy U = ½kx²; spring-force magnitude = k|x|

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.