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Torque calculator

Compute torque from a force applied at a distance from the pivot (τ = F·d).

Related tools

All Physics tools →
Gravitational force calculatorCompute the gravitational attraction between two masses (Newton's law).Work done calculatorCompute the work done by a force over a distance (W = F·d).Centripetal force calculatorCompute the centripetal force on an object moving in a circle (F = mv²/r).Force calculator (F = ma)Compute force from mass and acceleration using Newton's second law.Friction force calculatorCompute the friction force from the coefficient of friction and the normal force (F = μN).Hooke's law calculatorCompute the force of a spring from its stiffness and displacement (F = kx).Impulse calculatorCompute impulse from a force applied over a time (J = F·t).Pressure calculatorCompute pressure from a force applied over an area (P = F / A).

Need Torque (N·m)? The Torque calculator derives it from Force (N), Distance (m) in one step. For instance, with Force (N) = 50 and Distance (m) = 0.4 it returns Torque (N·m) = 20.

How to use it

  1. Enter your values: Force (N), Distance (m).
  2. Read the result instantly: Torque (N·m).

Frequently asked questions

What does the Torque calculator actually compute?

It takes Force (N) and Distance (m) and derives Torque (N·m) from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

2 values: Force (N) and Distance (m). Nothing else is required — no account, no file upload.

Can you show a worked example?

With Force (N) = 50 and Distance (m) = 0.4, the calculator returns Torque (N·m) = 20. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

What happens if I enter larger values?

It moves a lot. Using Force (N) = 100 and Distance (m) = 0.44 instead, Torque (N·m) goes from 20 to 44 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Force (N) = 25 and Distance (m) = 0.36, Torque (N·m) comes out at 9. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Checking a homework answer, sizing something before building it, and getting an order of magnitude before committing to a design — a torque on a bolt, the force a spring returns, the frequency a circuit resonates at, how long light takes to arrive.

What is the most common mistake?

Feeding in a value in the wrong unit. Physics formulas assume SI throughout, so grams instead of kilograms or centimetres instead of metres shifts the answer by powers of ten without any warning.

What is the difference between the Torque calculator and the Gravitational force calculator?

This one returns Torque (N·m); the Gravitational force calculator returns Gravitational force (N). That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Work done calculator is the closest one after this: Compute the work done by a force over a distance (W = F·d).

What else is worth having open alongside it?

Centripetal force calculator and Force calculator (F = ma) — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
ExplainerEngine Displacement and Compression Ratio: What They Actually Tell YouBoth numbers are pure geometry — one is the volume a piston sweeps, the other a ratio of two volumes — and both are read as if they described power. Here is each derivation worked on real engines, and exactly what each number can and cannot support.ExplainerTightening a Bolt to the Right Torque: Why the Number on the Wrench Is a GuessTorque does not hold a joint together — preload does, and torque is a poor proxy for it. Here is where 90 % of your effort goes, what the K-factor really is, and why the same 37.84 N·m gives anything from 12.61 kN to 37.84 kN of clamping force.How-toBelt Length Between Two Pulleys: The Geometry, and Why the Answer Is Not What You OrderTwice the centre distance plus both circumferences is 36 % too long. Here is the real formula, how the two straight runs and the two arcs actually add up, how far the standard approximation drifts, and what to do with a figure that is not a catalogue length.GuideTowing Capacity: the Limit That Stops You FirstThere is no single towing capacity. There are four or five separate limits, and the one that binds is rarely the tow rating on the brochure — it is usually the vehicle's own weight budget, quietly consumed by the people sitting in it.GuideGear Ratios, and Why Your Speedometer Lies After New TyresEngine rpm reaches the road through one unbroken multiplication chain, and the last link is the tyre. Change the tyre's rolling circumference and the speedometer goes wrong by exactly that percentage — in a direction the law cares about.ExplainerHooke's Law Explained: F = kx, Real Spring Constants, and Where It Stops HoldingHooke's law says force is proportional to stretch — but only below the elastic limit. Here is F = kx with worked numbers, what a 200 N/m spring actually feels like, and how springs combine.