What is a torque calculator?
Torque measures the turning effect of a force about an axis or pivot. It depends on force magnitude, lever-arm distance, and the angle between the force direction and the lever arm.
For a connected mechanics or engineering question, compare this result with the Force Calculator rather than treating one formula as a complete model.
How does the torque calculator work?
The calculator converts force to newtons and distance to meters, converts the entered angle to radians, and evaluates rF sinθ. It then reports torque in newton-meters and pound-feet.
If your next step involves another quantity, the Gear Ratio Calculator provides a separate calculation with its own units and assumptions.
What formula does the torque calculator use?
The calculator first converts the entered values to a consistent working unit system, then applies the standard relationship shown below. The displayed converted values make the calculation easier to check.
Use the unit selectors beside the inputs rather than adding unit symbols to number fields. Small differences from another source can occur because of rounding, constants, or different modeling assumptions.
How do you use this torque calculator?
- Enter the requested numeric values.
- Choose the correct units or solve-for option where shown.
- Select Calculate Torque.
- Read the main result, converted values, and method note.
- Use Copy, Download, or Print when you need to keep the result; select Reset to start over.
If you edit an input after calculating, the previous result is cleared so an old value is not mistaken for a current one.
What do the torque results mean?
Torque is greatest for a given force and lever arm when the force is perpendicular at 90 degrees. At 0 or 180 degrees, the modeled torque is zero because the force acts along the lever arm.
For a useful cross-check or conversion, open the Engine Horsepower Calculator; it can help translate this result into a related planning value.
What are the limitations of this torque calculator?
This calculator gives torque magnitude for a single force in a simple geometry. Three-dimensional moments, distributed loads, shaft dynamics, friction, and structural stresses require additional analysis.
You can also browse the Car Depreciation Calculator when the problem extends beyond this equation.
Who should use this torque calculator?
This torque calculator is useful for students, instructors, technicians, makers, and anyone who needs a quick transparent check of the standard relationship used by this tool. It is best suited to educational work, planning, estimation, homework checks, and non-safety-critical technical calculations.
For related problems, browse the Physics & Engineering Calculators category. For professional or regulated work, use the applicable engineering standards, manufacturer data, measured conditions, and qualified review instead of relying on a general-purpose calculator alone.
Frequently asked questions
Sources and methodology
The formula, unit conventions, and cautions on this page are documented so the calculation can be checked against authoritative references.