Science

Kinetic Energy Calculator

Find kinetic energy from mass and velocity.

This result in joules tells you how much kinetic energy the moving object has at the given mass and speed.

Formula

Kinetic energy = 0.5 × mass × velocity squared.

How it works

For example, 0.5 × 2 × 9 = 9 J.

FAQs

What does the Kinetic Energy Calculator do?
It takes the values you enter and works out the kinetic energy calculator for you, showing the result straight away.

What should I enter?
Enter ordinary numbers in the boxes above. If a value does not make sense for this calculation, the page will ask you to check it instead of showing a wrong answer.

Can I use the result for everyday math?
Yes. It is a general-purpose math helper; for professional work, still check the steps against your own working.