Torque: Turning effect of a force about a pivot. This free calculator solves for Torque, force, lever arm, angle and shows every step.
Torque is the rotational equivalent of force — it measures a force's tendency to cause rotation about a pivot. It depends on the force, the distance from the pivot, and the angle: a force applied perpendicular to the lever arm (θ = 90°) produces maximum turning effect, which is why a longer wrench loosens a stubborn bolt more easily.
F = 50 N at r = 0.30 m, perpendicular. τ = 50·0.30·sin90° = 15 N·m.
Tightening bolts to specification, see-saws and levers, engine output ratings, robotic joints and gearboxes.
Torque uses the formula τ = r·F·sinθ. Turning effect of a force about a pivot.
Choose which variable to solve for, enter the values you know (in any supported unit), and the calculator substitutes them into τ = r·F·sinθ and shows every step of the working. It can solve for Torque, force, lever arm, angle.
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