Torque: Explanation and example
Calculate the turning effect of a force from its magnitude, lever arm and angle.
Explanation and example
The torque magnitude is M = F × r × sin(θ). Enter force F in newtons, distance r from the axis to the application point in metres, and the angle θ between them in degrees. The answer uses N·m and does not assign a direction of rotation. r is the distance from the rotation axis to the point where the force acts, not an already calculated perpendicular moment arm.
Example: 10 N applied at a 2 m lever arm produces 20 N·m at 90°. At 30° the same force produces 10 N·m. A force parallel to the arm produces no torque.
Limits
Enter an angle between 0° and 180°. This model calculates the magnitude for one force about one axis. Several forces require signed moments and a separate sum; direction is not represented here.