Torque Calculator

Your details

Pick the unknown. Enter the other three values and this finds it.
The applied force. Switch units between newtons, kilonewtons, pound-force, or kilogram-force.
Distance from the axis to the point where the force acts.
Angle between the force vector and the lever arm. 90° gives the most torque.
°
Result
15
Torque (N·m)15N·m
Torque (lbf·ft)11.063lbf·ft
Torque (kgf·m)1.53kgf·m
Perpendicular force component50N
90 °
Almost none<15Reduced15-60Effective60-120Reduced120-165Almost none165+

This applies 15.00 newton-metres (11.06 lbf·ft) of torque.

  • Torque is force times the perpendicular lever arm: τ = F · r · sin(θ).
  • The same force produces more torque the farther it acts from the pivot, that is why a longer wrench loosens a stubborn bolt.
  • At ~90° the force is fully perpendicular, so sin(θ) ≈ 1 and you get the maximum possible torque for this setup.

Next stepTo turn that twist into spin-up, divide torque by the moment of inertia to get angular acceleration (α = τ / I).

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