# Kinetic Energy Calculator

> Calculate translational kinetic energy, mass, or speed.

Page: https://askcalculators.com/calculator/kinetic-energy-calculator/
Definition: https://askcalculators.com/calculator/kinetic-energy-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/kinetic-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/kinetic-energy-calculator/?solveFor=energy&energy=100&mass=2&speed=10

## Inputs
- solveFor: Solve for; type=select; required; default=energy; values=energy|mass|speed
- energy: Kinetic energy (J); type=number; required; default=100; min=0
- mass: Mass (kg); type=number; required; default=2; min=0.000001
- speed: Speed (m/s); type=number; required; default=10; min=0

## Outputs
- result: Solved value; format=number; primary
- unit: Unit; format=text

## Formula
kinetic energy KE = ½ × mass m × speed v²

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