Engineering

Torque Calculator

Calculate torque from force, lever arm, and angle.

Last validated: 2026-02-14

Use this free online Torque Calculator to compute torque from force and lever arm or solves for missing related variables. It is useful for classwork, lab checks, design screening, and engineering sanity checks where units and assumptions must stay visible. The form focuses on Force (N), Lever arm (m), Angle (deg) and returns Torque Inputs, Result, so you can move from input to answer without setting up a spreadsheet or custom script. Run one realistic example, adjust the inputs, and compare how the result changes before you copy or share it. Check units and formula assumptions carefully; for safety-critical or code-governed work, validate the result with authoritative references.

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Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

Torque Inputs

Result

Torque: 42.000000 N·m

How to use this tool

Enter Force (N), Lever arm (m), Angle (deg) for the torque calculator, keeping units, dates, or text format consistent with the form labels.
Confirm all units and known variables before running the calculation so the formula is applied consistently.
Click "Run the tool" and review Torque Inputs, Result for the primary output.
Verify units and assumptions, especially before using the result for design, lab, or safety-sensitive work.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

Force n: 120.0
Lever arm m: 0.35
Angle degrees: 90.0
Torque nm: 42.0

Expected Outputs

Force n: 120
Lever arm m: 0.35
Angle degrees: 90
Torque nm: 42

Interpretation

Force n is 120.0. Use this as a decision input, not as a standalone conclusion.
Lever arm m is 0.35. Use this as a decision input, not as a standalone conclusion.
Angle degrees is 90.0. Use this as a decision input, not as a standalone conclusion.
Confirm unit consistency and operational constraints before applying this result in production or field conditions.

Confidence and limitations

Outputs are deterministic formula results and depend entirely on input quality and units.
Results are for planning and learning; verify with domain standards before safety-critical use.
Use as a quick estimate only; validate against codes, tolerances, and project constraints.

Formula References

First-order engineering design formulas and unit conversions.
Results are quick estimates, not code-compliance validation.

Assumptions

Outputs are deterministic formula results and depend entirely on input quality and units.
Results are for planning and learning; verify with domain standards before safety-critical use.
Use as a quick estimate only; validate against codes, tolerances, and project constraints.

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Torque Calculator

Input Pattern

Torque Inputs

Result

How to use this tool

Worked Example

Example Inputs

Expected Outputs

Interpretation

Confidence and limitations

Formula References

Assumptions

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