Torque converter
1 ft-lb is 1.356 N·m, and 1 N·m is 0.738 ft-lb. Multiply ft-lb by 12 for in-lb, and divide N·m by 9.807 for kgf·m.
Sources checked
Convert a torque
Exact factors
- Newton-meters (N·m)
- 135.6N·m
- Inch-pounds (in-lb)
- 1,200in-lb
- Kilogram-force meters (kgf·m)
- 13.83kgf·m
The conversion factors
| From | To | Multiply by |
|---|---|---|
| ft-lb | N·m | 1.355818 |
| N·m | ft-lb | 0.737562 |
| in-lb | N·m | 0.112985 |
| N·m | in-lb | 8.8507 |
| kgf·m | N·m | 9.80665 |
| ft-lb | in-lb | 12 |
Worked from the exact definitions of the pound-force (0.45359237 kg × 9.80665 m/s²), the foot and the inch; NIST lists the same factors rounded to seven digits.
What each unit measures, and which ones car manuals print: torque units explained. Setting the converted value on the wrench: how to use a click torque wrench; with a crowfoot or adapter on it, the extension calculator.
Common wrench settings
| ft-lb | N·m |
|---|---|
| 5 | 6.8 |
| 10 | 13.6 |
| 15 | 20.3 |
| 20 | 27.1 |
| 25 | 33.9 |
| 30 | 40.7 |
| 35 | 47.5 |
| 40 | 54.2 |
| 50 | 67.8 |
| 60 | 81.3 |
| 65 | 88.1 |
| 70 | 94.9 |
| 75 | 101.7 |
| 80 | 108.5 |
| 85 | 115.2 |
| 90 | 122.0 |
| 94 | 127.4 |
| 100 | 135.6 |
| 110 | 149.1 |
| 120 | 162.7 |
| 129 | 174.9 |
| 140 | 189.8 |
| 150 | 203.4 |
| 165 | 223.7 |
| 180 | 244.0 |
| 200 | 271.2 |
| 250 | 339.0 |
| 300 | 406.7 |
| N·m | ft-lb |
|---|---|
| 5 | 3.7 |
| 8 | 5.9 |
| 10 | 7.4 |
| 12 | 8.9 |
| 15 | 11.1 |
| 20 | 14.8 |
| 25 | 18.4 |
| 30 | 22.1 |
| 35 | 25.8 |
| 40 | 29.5 |
| 50 | 36.9 |
| 60 | 44.3 |
| 70 | 51.6 |
| 80 | 59.0 |
| 90 | 66.4 |
| 100 | 73.8 |
| 108 | 79.7 |
| 110 | 81.1 |
| 120 | 88.5 |
| 127 | 93.7 |
| 135 | 99.6 |
| 140 | 103.3 |
| 150 | 110.6 |
| 175 | 129.1 |
| 200 | 147.5 |
| 250 | 184.4 |
| 300 | 221.3 |
| 400 | 295.0 |
Need a torque for a bolt rather than a conversion? Try the bolt torque calculator or lug nut torque by vehicle.
Questions
How many N·m is 1 ft-lb?
1 ft-lb is 1.3558 N·m (exactly 0.3048 m × 4.4482216152605 N). Going the other way, 1 N·m is 0.7376 ft-lb.
Is ft-lb the same as lb-ft?
For torque, yes: both mean a pound-force acting at one foot. Manuals write it as ft-lb, lb-ft, lbf·ft or ft·lbf; the number is the same.
How do I convert in-lb to ft-lb?
Divide by 12: 120 in-lb is 10 ft-lb. Multiply ft-lb by 12 to go back.
What is kgf·m?
Kilogram-force meters, an older metric unit still printed in some Japanese and Korean manuals next to N·m. 1 kgf·m is exactly 9.80665 N·m, or about 7.23 ft-lb.
Sources
- NIST: Guide to the SI (SP 811), Appendix B.8: conversion factors for units listed alphabetically (checked October 23, 2026)
Spotted a number that doesn’t match your manual or a source? Tell us; corrections are logged on the sources page.