About the Centripetal Force Calculator
Centripetal force and acceleration for circular motion from mass, speed and radius.
Also known as: circular motion force, centrifugal force calculator, mv2/r.
How to use this calculator
- Enter mass, speed, radius.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
F = mv² / r · a = v² / r
Worked example
Using the values pre-filled in the calculator above:
- Mass = 1,200 kg
- Speed = 15 m/s
- Radius = 50 m
the calculator returns:
- Centripetal force: 5,400 N
- Centripetal acceleration: 4.5 m/s²
- In g-forces: 0.459 g
- Angular velocity: 0.3 rad/s