Conversion table (newton-metres to foot-pounds)
| Newton-metres | Foot-pounds | Inch-pounds | |
|---|---|---|---|
| 5 Nm | 3.69 | 44.25 | small screws |
| 10 Nm | 7.38 | 88.51 | |
| 20 Nm | 14.75 | 177.01 | spark plug |
| 25 Nm | 18.44 | 221.27 | |
| 50 Nm | 36.88 | 442.54 | |
| 80 Nm | 59.00 | 708.06 | |
| 100 Nm | 73.76 | 885.07 | car lug nut |
| 150 Nm | 110.63 | 1327.61 | |
| 200 Nm | 147.51 | 1770.15 | truck lug nut |
How to convert Nm to ft-lb
- Nm
- newton-metres you enter
- ft-lb
- the result in foot-pounds
- 0.7376
- foot-pounds in one newton-metre
- 1.3558
- newton-metres in one foot-pound
Foot-pound (ft-lb) and pound-foot (lb-ft) are two names for the same torque; manuals use both. Do not confuse it with the foot-pound of energy, which is a different quantity that happens to share the name.
Always torque fasteners to the manufacturer's figure. This tool converts units; it does not tell you the correct spec.
Frequently asked questions
How many ft-lb is 100 Nm?
100 Nm is about 73.76 ft-lb.
Is ft-lb the same as lb-ft?
Yes. Foot-pound and pound-foot are the same torque unit written in a different order; both appear in service manuals.
How many Nm is 1 ft-lb?
One foot-pound is 1.3558 Nm.
What is 50 Nm in ft-lb?
50 Nm is about 36.88 ft-lb.
When should I use inch-pounds instead?
For small fasteners, where foot-pound values are less than one. There are 12 inch-pounds in a foot-pound.
Is a newton-metre of torque the same as a joule?
No. They share the same base units but describe different things: torque (Nm) is a twisting effort, energy (joule) is work done.
Related conversions
Working with smaller fasteners? Nm to inch-pounds suits low torque values, and inch-pounds to foot-pounds steps between the two customary units (12 in-lb to the ft-lb). For a straight pull rather than a twist, pound-force to newtons converts force. Torque figures should always come from the manufacturer, not a converter.