Ft-lb to Nm Converter
The tool above lets you convert foot-pound '[ft*lbf]' to Newton meter '[N*m]', or vice versa.
Foot-pound ('ft·lb' or 'ft·lbf')
Definition: The foot-pound ('ft·lb' or 'ft·lbf') is a unit of work or energy within the imperial and United States customary measurement systems. It signifies the energy transferred when a force of one pound-force is exerted over a linear displacement of one foot.
Origin: As an English Engineering unit, the foot-pound is integral to the British Gravitational system based on the foot-pound-second (FPS) system. The FPS system employs the foot for length, avoirdupois pound for mass or force, and the second for time.
Current Usage: The foot-pound persists in countries that have not embraced the International System of Units (SI). The United States, among the largest nations still employing the foot-pound in specific applications, generally prefers the joule in most scientific contexts, even within the US.
Newton-meter ('N·m')
Definition: The newton-meter ('N·m') serves as a unit for measuring work or energy, and in this context, it is equivalent to the joule, the SI unit of energy. Specifically, it quantifies the energy transferred to an object when subjected to a one-newton force applied in the direction of its motion over a distance of one meter.
Origin: The adoption of the newton-meter as a unit for work or energy stems from the dimensional equivalence between the joule, the internationally recognized SI unit for energy, and the newton-meter.
Current Usage: While the Newton meter is traditionally associated with measuring torque, its application as a unit for work or energy is discouraged. This precaution is taken to prevent potential confusion between expressions of energy and torque, emphasizing the importance of clarity in scientific and engineering contexts.
Foot-pound to Newton-meter Conversion Table
| Foot-pound '[ft*lbf]' | Newton Meter '[N*m]' |
|---|---|
| '0.01 ft*lbf' | '0.0135581795 N*m' |
| '0.1 ft*lbf' | '0.1355817948 N*m' |
| '1 ft*lbf' | '1.3558179483 N*m' |
| '2 ft*lbf' | '2.7116358966 N*m' |
| '3 ft*lbf' | '4.0674538449 N*m' |
| '5 ft*lbf' | '6.7790897414 N*m' |
| '10 ft*lbf' | '13.5581794829 N*m' |
| '20 ft*lbf' | '27.1163589658 N*m' |
| '50 ft*lbf' | '67.7908974145 N*m' |
| '100 ft*lbf' | '135.581794829 N*m' |
| '1000 ft*lbf' | '1355.8179482896 N*m' |
How to Convert Foot-pounds to Newton-meters
To convert foot-pounds ('ft·lbf') to Newton meters ('N·m'):
- Multiply the number of foot-pounds by the conversion factor: '1 ft·lbf = 1.3558179483 N·m'
To convert Newton meters ('N·m') to foot-pounds ('ft·lbf'):
- Multiply the number of Newton meters by the conversion factor: '1 N·m = 0.7375621493 ft·lbf'
Example:
To convert 25 foot-pounds to 'N·m':
'25ft-lbf = 25 × 1.3558179483Nm = 70.5025333116Nm'