Physics and Engineering
Torque Calculator
Torque Calculator calculate torque from applied force, lever-arm length, and angle between the force and lever arm.
Physics and Engineering
Torque Calculator
Calculate torque from applied force, lever-arm length, and angle between the force and lever arm.
Formula
Torque magnitude = force x lever arm x sin(angle).
About the Torque Calculator
Calculate torque from applied force, lever-arm length, and angle between the force and lever arm.
How the Torque Calculator Works
Only the force component perpendicular to the lever arm contributes torque; the resulting newton-meters are converted to pound-feet and pound-inches.
Formula
Torque magnitude = force x lever arm x sin(angle).
The calculation runs in your browser. Values are validated for required ranges, compatible units, and method-specific restrictions before results are displayed.
Required Inputs
- Applied force (required) - enter in N.
- Lever-arm length (required) - enter in m.
- Force-to-lever angle (required) - enter in degrees.
Results Reported
The result panel reports the final answer and the intermediate quantities needed to check the calculation:
- Torque (N m)
- Perpendicular force component (N)
- Torque (lb-ft)
- Torque (lb-in)
Torque Calculator Example
Select Example Data in the calculator to load this reproducible input set:
| Input | Example value |
|---|---|
| Applied force | 400 N |
| Lever-arm length | 0.5 m |
| Force-to-lever angle | 90 degrees |
How to Use the Calculator
- Confirm that the calculator title and formula match the quantity you need.
- Enter every required value using the unit shown with its field.
- Select Example Data to inspect a valid input set, or enter your own values and select Calculate.
- Review all reported values and the displayed formula before using the answer.
- Use Copy Result or Download CSV when you need a reusable record.
Accuracy and Limitations
Use the perpendicular angle between the radius vector and force. This static scalar result does not include shaft torsion, distributed loads, inertia, or tightening friction.
Keep units consistent, use measurements that represent the actual situation, retain full precision during the calculation, and round only the final answer. Professional decisions may require current official rules, field measurements, laboratory methods, or specialist review.
Frequently Asked Questions
What does the Torque Calculator calculate?
Calculate torque from applied force, lever-arm length, and angle between the force and lever arm.
Which formula does the Torque Calculator use?
Torque magnitude = force x lever arm x sin(angle). Only the force component perpendicular to the lever arm contributes torque; the resulting newton-meters are converted to pound-feet and pound-inches.
What should I check before using the Torque Calculator result?
Use the perpendicular angle between the radius vector and force. This static scalar result does not include shaft torsion, distributed loads, inertia, or tightening friction.