EngiRef / Mechanical Engineering Formula
Torque
Torque: Torque (moment) from a perpendicular force. A Statics formula in mechanical engineering. Variables τ, F and r, each with SI and imperial units.
Statics
Specification
- Name
- Torque
- Discipline
- mechanical
- Category
- Statics
- LaTeX
- \tau = F \cdot r
- Description
- Torque (moment) from a perpendicular force
- Conditions
- Magnitude assumes the force is perpendicular to the moment arm
- Can solve for
- τ, F, r
- Tags
- torque, moment, rotation
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| τ | Torque | N·m | N·m | ft·lbf |
| F | Force | N | N | lbf |
| r | Moment Arm | m | m | ft |
Common questions
- What is the Torque formula?
- Torque (moment) from a perpendicular force. It sits under Statics, Mechanical engineering in the EngiRef reference.
- What do the symbols in the Torque formula mean?
- In Torque, τ is torque in N·m; F is force in N; r is moment arm in m.
- When does the Torque formula apply?
- Torque holds under this condition: Magnitude assumes the force is perpendicular to the moment arm.