Moment of Force Converter
What is Moment of Force?
Moment of force, also known as torque, is the measure of the tendency of a force to cause an object to rotate about an axis. It is the product of the force applied and the perpendicular distance from the axis of rotation to the line of action of the force.
The SI unit for moment of force is the newton-meter (N·m), though other units are also commonly used in various applications.
Formula
The basic formula for moment of force is:
M = F × d
Where:
- M = Moment of force
- F = Applied force
- d = Perpendicular distance from the axis to the line of action of the force
Common Units of Moment of Force
| Unit | Symbol | Conversion to N·m |
|---|---|---|
| Newton meter | N·m | 1 |
| Kilonewton meter | kN·m | 1000 |
| Millinewton meter | mN·m | 0.001 |
| Micronewton meter | μN·m | 0.000001 |
| Ton-force (short) meter | tonf·m | 8896.44 |
| Ton-force (long) meter | tonf·m | 9964.02 |
| Ton-force (metric) meter | tf·m | 9806.65 |
| Kilogram-force meter | kgf·m | 9.80665 |
| Gram-force centimeter | gf·cm | 0.0000980665 |
| Pound-force foot | lbf·ft | 1.35582 |
| Poundal foot | pdl·ft | 0.0421401 |
| Poundal inch | pdl·in | 0.003511675 |
Applications
Moment of force calculations are essential in:
- Mechanical engineering design
- Structural analysis
- Automotive engineering
- Aircraft design
- Robotics
- Physics experiments
- Manufacturing processes
- Construction projects
Practical Examples
Wrench Application: When using a wrench to tighten a bolt, the force you apply multiplied by the length of the wrench gives the moment of force on the bolt.
Lever Systems: In levers, the moment of force determines the mechanical advantage and helps in understanding the balance of forces.
Engine Torque: Engine torque is a measure of the rotational force that an engine generates, which determines its ability to do work.