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Angular momentum
Multiply moment of inertia about a fixed axis by angular velocity to find signed angular momentum; reversing rotation reverses its sign.
Calculators / Science / Torque from force
Torque from force calculator
Calculate torque magnitude using force, the distance from the pivot and the angle between them; a parallel force produces no torque.
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Torque magnitude50N·m
Calculator controls
How to calculate
Calculate torque magnitude using force, the distance from the pivot and the angle between them; a parallel force produces no torque.
Torque magnitude = F*r*sin(a*pi/180) N·m
Worked example
Force (N): 100; Lever arm (m): 0.5; Angle between force and arm (degrees): 90.
Torque magnitude: 50 N·m.
Assumptions and limits
Calculate torque magnitude using force, the distance from the pivot and the angle between them; a parallel force produces no torque. Ideal classical mechanics. Enter SI units and the angle between the force and lever arm; torque output is a magnitude.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate torque magnitude using force, the distance from the pivot and the angle between them; a parallel force produces no torque.
When this tool is useful
Torque magnitude = F*r*sin(a*pi/180) N·m
Understanding your inputs
| Input | What to enter |
|---|---|
| Force (N) | Enter a number of at least 0 and no more than 1000000000000. |
| Lever arm (m) | Enter a number of at least 0 and no more than 1000000000000. |
| Angle between force and arm (degrees) | Enter a number of at least 0 and no more than 180. |
Frequently asked questions
What assumptions does this calculation use?
Calculate torque magnitude using force, the distance from the pivot and the angle between them; a parallel force produces no torque. Ideal classical mechanics. Enter SI units and the angle between the force and lever arm; torque output is a magnitude.
How is the result calculated?
Torque magnitude = F*r*sin(a*pi/180) N·m