Torque Converter (Nm to lb-ft)
Enter a torque value and choose the two units, for example to turn a spec in newton metres into pound-feet for your torque wrench.
Updated
Report a problem
Formula
The newton metre is the base unit. 1 lbf·ft = 0.3048 m × 4.4482216152605 N = 1.3558179483 N·m and 1 kgf·m = 9.80665 N·m.
N·m = lbf·ft × 1.3558179483lbf·ft = N·m ÷ 1.35581794831 lbf·ft = 12 lbf·in = 192 ozf·in
Worked example
| From | To | Calculation | Result |
|---|---|---|---|
| 100 N·m | lbf·ft | 100 ÷ 1.3558179483 | 73.756215 |
| 100 lbf·ft | N·m | 100 × 1.3558179483 | 135.581795 |
| 50 lbf·in | N·m | 50 × 1.3558179483 ÷ 12 | 5.649241 |
| 1 N·m | kgf·cm | 100 ÷ 9.80665 | 10.197162 |
Frequently asked questions
How do I convert Nm to lb-ft?
Divide newton metres by 1.3558179483. For 100 N·m that is 100 ÷ 1.3558179 = 73.756215 lbf·ft.
How do I convert lb-ft to Nm?
Multiply pound-feet by 1.3558179483. A wheel nut torque of 100 lbf·ft is 135.581795 N·m.
How many pound-inches are in a pound-foot?
One pound-foot is 12 pound-inches, because a foot is 12 inches. 50 lbf·in is therefore 4.166667 lbf·ft, or 5.649241 N·m.
What is the difference between torque and force?
Force pushes in a straight line, while torque is a force acting at a distance from a pivot. 10 N applied 0.5 m from a bolt gives 5 N·m.