Torque Calculator
📐 Physics of Matter. Use the Torque formula to find torque τ, lever arm, force, angle θ: pick the value you want, type the others, and the answer updates as you go.
Torque τ10 N·m
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Torque τ | N·m |
| Lever arm | m |
| Force | N |
| Angle θ | ° |
Worked example
Find the torque τ when Lever arm = 0.5 m, Force = 20 N, Angle θ = 90 °.
Using τ = rFsinθ: Torque τ = 10 N·m.
Frequently asked questions
What is the formula for Torque?
τ = rFsinθ.
What do the letters stand for, and what units are used?
Torque τ in N·m, Lever arm in m, Force in N, Angle θ in °.
How do you calculate torque τ?
Put the values into τ = rFsinθ. For example, with Lever arm = 0.5 m, Force = 20 N, Angle θ = 90 °, torque τ = 10 N·m.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (torque τ, lever arm, force, angle θ) and fill in the others: it rearranges the formula for you.
