Torque converter
Torque Converter – 6 Units, Exact Factors
1 pound-force foot = 1.3558 newton metres
Default is 5 significant figures. “Search units as” decides what words like gallon, pint or cup mean when you type them. Shortcuts: Alt+S swap · Alt+C copy · Alt+L link · / search
- 1 lbf·ft = 1.3558 N·m
- 5 lbf·ft = 6.7791 N·m
- 10 lbf·ft = 13.558 N·m
- 25 lbf·ft = 33.895 N·m
- Newton metresN·m
- Kilonewton metreskN·m
- Pound-force feetlbf·ft
- Pound-force incheslbf·in
- Kilogram-force metreskgf·m
- Ounce-force inchesozf·in
- Newton metres1.3558N·m
- Kilonewton metres0.0013558kN·m
- Pound-force feet1lbf·ft
- Pound-force inches12lbf·in
- Kilogram-force metres0.13825kgf·m
- Ounce-force inches192ozf·in
About torque conversions
Torque specs for bolts and engines. Pound-force is defined from the exact pound and standard gravity, so lbf·ft = 1.355817948 … N·m.
Common torque conversions
Torque units explained
| Unit | System | Definition and notes |
|---|---|---|
| Newton metre (N·m) | SI (metric) | Base unit |
| Kilonewton metre (kN·m) | SI (metric) | 1 kN·m = 1,000 N·m (exact) |
| Pound-force foot (lbf·ft) | US & imperial (identical) | 1 lbf·ft ≈ 1.3558179 N·mPound-feet of torque, about 1.3558 N·m. "ft-lb" and "lb-ft" mean the same thing for torque. |
| Pound-force inch (lbf·in) | US & imperial (identical) | 1 lbf·in ≈ 0.11298483 N·m |
| Kilogram-force metre (kgf·m) | other | 1 kgf·m = 9.80665 N·m (exact) |
| Ounce-force inch (ozf·in) | US & imperial (identical) | 1 ozf·in ≈ 0.0070615518 N·m |
Pound-force feet to newton metres conversion table
| Pound-force feet (lbf·ft) | Newton metres (N·m) |
|---|---|
| 0.1 lbf·ft | 0.13558 N·m |
| 0.5 lbf·ft | 0.67791 N·m |
| 1 lbf·ft | 1.3558 N·m |
| 2 lbf·ft | 2.7116 N·m |
| 3 lbf·ft | 4.0675 N·m |
| 4 lbf·ft | 5.4233 N·m |
| 5 lbf·ft | 6.7791 N·m |
| 6 lbf·ft | 8.1349 N·m |
| 7 lbf·ft | 9.4907 N·m |
| 8 lbf·ft | 10.847 N·m |
| 9 lbf·ft | 12.202 N·m |
| 10 lbf·ft | 13.558 N·m |
| 15 lbf·ft | 20.337 N·m |
| 20 lbf·ft | 27.116 N·m |
| 25 lbf·ft | 33.895 N·m |
| 30 lbf·ft | 40.675 N·m |
| 40 lbf·ft | 54.233 N·m |
| 50 lbf·ft | 67.791 N·m |
| 75 lbf·ft | 101.69 N·m |
| 100 lbf·ft | 135.58 N·m |
| 250 lbf·ft | 338.95 N·m |
| 500 lbf·ft | 677.91 N·m |
| 1,000 lbf·ft | 1,355.8 N·m |
Frequently asked questions
Which torque units can I convert?
newton metres (N·m), kilonewton metres (kN·m), pound-force feet (lbf·ft), pound-force inches (lbf·in), kilogram-force metres (kgf·m), ounce-force inches (ozf·in).
How accurate are the results?
Every unit is stored with its exact defining factor (NIST SP 811, NIST Handbook 44 or the BIPM SI Brochure). Calculations use double-precision arithmetic and are rounded only for display, to 5 significant figures by default (trailing zeros dropped, so 1 km shows as 1000 m). You can choose Auto (up to 10 digits), fixed decimals or more significant figures, or switch to scientific or engineering notation.
Are N·m of torque and joules the same?
They have the same SI dimensions (kg·m²/s²) but describe different things: torque is a turning moment and energy is work done. Unitglide keeps them in separate categories so you never mix them by accident.