Common Moment of Force Conversions
Newton Meter to Foot-Pound
1 N⋅m = 0.738 ft⋅lbf
Foot-Pound to Newton Meter
1 ft⋅lbf = 1.356 N⋅m
Kilonewton Meter to Foot-Pound
1 kN⋅m = 737.6 ft⋅lbf
Inch-Pound to Newton Meter
1 in⋅lbf = 0.113 N⋅m
Kilogram-force Meter to N⋅m
1 kgf⋅m = 9.807 N⋅m
Dyne Centimeter to N⋅m
1 dyn⋅cm = 1×10⁻⁷ N⋅m
Engineering Applications
Structural Beams
Bending moments in construction
10-1000 kN⋅m
Machine Shafts
Torsional moments in machinery
100-10000 N⋅m
Automotive Axles
Drive shaft torque
1000-5000 N⋅m
Wind Turbine Hub
Massive rotating systems
1-10 MN⋅m
Precision Instruments
Small mechanical devices
0.001-1 N⋅m
Bridge Supports
Load-bearing structures
100-10000 kN⋅m
About Moment of Force (Torque)
Moment of force, also known as torque, is the rotational equivalent of linear force. It represents the tendency of a force to rotate an object about an axis. Common units include:
- Newton Meter (N⋅m): The SI unit of torque, representing the moment from a 1 Newton force applied at a 1 meter distance from the axis.
- Foot-Pound Force (ft⋅lbf): Imperial unit commonly used in automotive and mechanical applications in the United States.
- Inch-Pound Force (in⋅lbf): Smaller imperial unit used for precision applications and smaller fasteners.
- Kilogram-force Meter (kgf⋅m): Metric unit based on gravitational force, still used in some regions.
- Dyne Centimeter (dyn⋅cm): CGS unit used in scientific applications for very small torques.
Torque is calculated as τ = r × F × sin(θ), where r is the distance from the axis, F is the applied force, and θ is the angle between the force vector and the lever arm. It's fundamental in mechanical engineering, automotive applications, and structural analysis.