Power, Torque & Speed
Force from Torque and Radius Calculator
Enter torque and the effective lever, pulley, drum, or sprocket radius to calculate the corresponding ideal tangential force.
Inputs
Formula
Tangential force from torque
Worked example
Using the default values shown in the calculator, the same formula gives the following result. This is a quick sanity check for the calculation, not a design recommendation.
Inputs
- Torque
- 50 N*m
- Effective radius
- 100 mm
Result
- Tangential force
- 500 N
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Technical references for this calculation
Frequently asked questions
Does a smaller radius produce more force?
For the same torque, ideal tangential force increases as effective radius decreases.
Does this account for friction or efficiency?
No. It converts torque to ideal tangential force at the entered radius before drivetrain or contact losses.