Kinetic Energy Calculator
Calculate translational kinetic energy from mass and speed.
How to use
- Enter mass m.
- Enter speed v and calculate.
Capabilities and scope
With SI interpretation of kilograms and metres per second, the result is in joules.
How it works
It uses Eₖ=0.5×m×v².
Example
m=2 kg and v=3 m/s give 9 J.
Useful for
- Compare ideal translational energy of moving objects
- See the squared effect of speed on energy
Before you use it
- Rotational energy, relativistic effects, and drag are not included.
Frequently asked questions
What if speed doubles?
At the same mass, kinetic energy becomes four times larger.