Convert Foot-pound to Newton-metre
1 foot-pound = 1.355818 newton-metre (N·m). For example, 10 foot-pound = 13.55818 newton-metre and 100 foot-pound = 135.5818 newton-metre. Type any value below to convert foot-pound to newton-metre both ways — it runs entirely in your browser.
Torque vs energy: Both the newton-metre (N·m) and the foot-pound (ft·lbf / lbf·ft) are used for two different things — ENERGY (work done) and TORQUE (a twisting force). The conversion number is the same either way: 1 lbf·ft of torque = 1.3558 N·m, and 1 ft·lbf of energy = 1.3558 J, so the result above is correct whichever you mean. Just keep the meaning straight — you cannot turn a torque into an amount of energy (e.g. into kWh or calories); you only convert torque↔torque or energy↔energy.
Foot-pound to Newton-metre conversion formula
To convert foot-pound to newton-metre, multiply by 1.355818:
newton-metre = foot-pound × 1.355818
Going the other way, 1 newton-metre = 0.7375621 foot-pound, so
foot-pound = newton-metre × 0.7375621.
Foot-pound to Newton-metre — worked examples
| Foot-pound | Newton-metre |
|---|---|
| 1 ft·lbf | 1.355818 N·m |
| 2 ft·lbf | 2.711636 N·m |
| 3 ft·lbf | 4.067454 N·m |
| 5 ft·lbf | 6.77909 N·m |
| 10 ft·lbf | 13.55818 N·m |
| 25 ft·lbf | 33.89545 N·m |
| 50 ft·lbf | 67.7909 N·m |
| 100 ft·lbf | 135.5818 N·m |
Foot-pound ↔ Newton-metre reference table
| Foot-pound → Newton-metre | Newton-metre → Foot-pound |
|---|---|
| 1 ft·lbf = 1.355818 N·m | 1 N·m = 0.7375621 ft·lbf |
| 2 ft·lbf = 2.711636 N·m | 2 N·m = 1.475124 ft·lbf |
| 5 ft·lbf = 6.77909 N·m | 5 N·m = 3.687811 ft·lbf |
| 10 ft·lbf = 13.55818 N·m | 10 N·m = 7.375621 ft·lbf |
| 20 ft·lbf = 27.11636 N·m | 20 N·m = 14.75124 ft·lbf |
| 50 ft·lbf = 67.7909 N·m | 50 N·m = 36.87811 ft·lbf |
| 100 ft·lbf = 135.5818 N·m | 100 N·m = 73.75621 ft·lbf |
| 250 ft·lbf = 338.9545 N·m | 250 N·m = 184.3905 ft·lbf |
| 500 ft·lbf = 677.909 N·m | 500 N·m = 368.7811 ft·lbf |
| 1000 ft·lbf = 1,355.818 N·m | 1000 N·m = 737.5621 ft·lbf |
About foot-pound and newton-metre
Foot-pound: A foot-pound is the energy of one pound-force acting over one foot — about 1.3558 joules. The same number (as the pound-foot, lbf·ft) is also the common US unit of TORQUE.
Newton-metre: A newton-metre is one newton applied over one metre. As a unit of ENERGY it is identical to the joule (1 N·m = 1 J); as a unit of TORQUE it measures rotational effort — a different physical quantity that does not convert into joules, kWh or calories.
Frequently asked questions
- How many newton-metre are in 1 foot-pound?
- 1 foot-pound = 1.355818 newton-metre (N·m).
- How do I convert foot-pound to newton-metre?
- Multiply the number of foot-pound by 1.355818. For example, 10 foot-pound = 10 × 1.355818 = 13.55818 newton-metre.
- How many foot-pound are in 1 newton-metre?
- 1 newton-metre = 0.7375621 foot-pound.
- Which is bigger, foot-pound or newton-metre?
- 1 foot-pound equals 1.355818 newton-metre, so a foot-pound is the larger unit.