Science
Centripetal Force Calculator
Use the centripetal force calculator for circular-motion problems with speed, mass, and radius.
Choose the missing quantity; the calculator hides that field and solves it from the others.
Solved value
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- Centripetal force
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- Mass
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- Speed
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- Radius
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Student quick launch
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Study path
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What the centripetal force calculator solves
Use the centripetal force calculator for circular-motion problems with speed, mass, and radius.
Formula
How to use it
- Choose the quantity you want to solve for.
- Enter the known values with consistent units.
- Check the rearranged formula, substitution, and warnings before using the result.
How to read the answer
Centripetal force rises with the square of speed, so small speed changes can matter a lot.
Common mistakes and edge cases
- Use tangential speed, not angular speed.
- Radius must be measured from the center of the circular path.
- This is net inward force, not an extra outward force.
Worked examples
Find inward force
Solved value
Centripetal force = 80 N
Find safe speed
Solved value
Speed = 6.3246 m/s
Frequently asked questions
Can the centripetal force calculator solve for a missing variable?+
Yes. Use the solve-for control to hide the missing value, then enter the other known values with compatible units.
Why do the units matter?+
Formula calculators assume the entered values are already in matching units. Convert first when your measurements use mixed systems.
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Last updated: May 15, 2026