Torque Converter (N·m to lb·ft)
By Santaji GadepatilinUpdated October 27, 2026
Torque specifications appear in newton-metres, pound-feet, kilogram-force metres and more. Converting accurately matters when tightening bolts and comparing engines and motors.
How to use the torque converter
Type a torque value in any unit and the others update instantly — useful for torque wrench settings, bolt specs and motor data.
Torque formula
1 N·m = 0.73756 lbf·ft = 8.8507 lbf·in 1 kgf·m = 9.80665 N·m
Example: a wheel nut spec of 110 N·m = 81.1 lbf·ft. 25 lbf·in for a small fastener = 2.82 N·m.
Conversion table
| N·m | lbf·ft |
|---|---|
| 5 N·m | 3.68781 lbf·ft |
| 10 N·m | 7.37562 lbf·ft |
| 25 N·m | 18.4391 lbf·ft |
| 50 N·m | 36.8781 lbf·ft |
| 80 N·m | 59.005 lbf·ft |
| 100 N·m | 73.7562 lbf·ft |
| 120 N·m | 88.5075 lbf·ft |
| 150 N·m | 110.634 lbf·ft |
| 200 N·m | 147.512 lbf·ft |
| 300 N·m | 221.269 lbf·ft |
| lbf·ft | N·m |
|---|---|
| 10 lbf·ft | 13.5582 N·m |
| 20 lbf·ft | 27.1164 N·m |
| 50 lbf·ft | 67.7909 N·m |
| 75 lbf·ft | 101.686 N·m |
| 100 lbf·ft | 135.582 N·m |
| 150 lbf·ft | 203.373 N·m |
| 250 lbf·ft | 338.954 N·m |
lbf·ft vs “ft-lbs”
Torque is often written “ft-lbs” on wrenches and manuals; strictly, foot-pounds is a unit of energy, but in torque specs the two mean the same thing.
Torque conversion table
| N·m | lbf·ft | lbf·in | kgf·m |
|---|---|---|---|
| 1 | 0.74 | 8.9 | 0.102 |
| 5 | 3.69 | 44.3 | 0.510 |
| 10 | 7.38 | 88.5 | 1.020 |
| 20 | 14.75 | 177.0 | 2.039 |
| 25 | 18.44 | 221.3 | 2.549 |
| 50 | 36.88 | 442.5 | 5.099 |
| 80 | 59.00 | 708.1 | 8.158 |
| 100 | 73.76 | 885.1 | 10.197 |
| 150 | 110.63 | 1327.6 | 15.296 |
| 200 | 147.51 | 1770.1 | 20.394 |
| 300 | 221.27 | 2655.2 | 30.591 |
| 500 | 368.78 | 4425.4 | 50.986 |
Typical tightening torques
| Application | Typical torque |
|---|---|
| Car wheel nuts | 80–140 N·m (59–103 lbf·ft) |
| Spark plugs | 20–30 N·m |
| Bicycle stem bolts | 4–6 N·m |
| Engine head bolts | Varies — follow the manual |
Always use the value from the manufacturer’s manual and a calibrated torque wrench.
Torque and power
Power = torque × angular speed. In practical units:
P (kW) = T (N·m) × rpm ÷ 9,549
An engine producing 300 N·m at 4,000 rpm delivers about 126 kW.
Torque and motors
For motors, torque links power and speed: T (N·m) = 9549 × P (kW) ÷ rpm. Use the torque, power & speed calculator.
Frequently asked questions
How many lbf·ft is 1 N·m?
0.737562 lbf·ft.
How many N·m is 1 lbf·ft?
1.35582 N·m.
How do I convert lbf·in to lbf·ft?
Divide by 12.
How many lbf·ft is 100 N·m?
100 N·m is 73.76 lbf·ft.
How many N·m is 50 ft-lbs?
50 lbf·ft is 67.79 N·m.