Newton-Meters to Foot-Pounds
- Inch-pounds to foot-pounds
- Nm to foot-pounds
- Nm to inch-pounds
Disclaimer: Whilst every effort has been made in building our calculator tools, we are not to be held liable for any damages or monetary losses arising out of or in connection with their use. Full disclaimer.
How to convert newton-meters (Nm) to pound-feet
One Newton meter/metre (Nm) = 0.7376 lbf.ft (frequently expressed as ft-lb or foot pounds, but technically lbf.ft is correct) representing 1 lbf acting at 1 ft from the centre of rotation. To convert your Nm figure to lbf.ft, simply multiply it by 0.7376.
Note: We express pound force as lbf in the definition above in order to distinguish it from lb mass, but it can also be written as lb-ft. The use of ft/lb for torque is incorrect, although frequently seen and quoted in magazines.
Pound-feet and foot-pounds
There has been much debate around whether it is correct to use foot-pounds when referring to torque, with the term "pound-foot" being proposed to reduce confusion with foot-pound, a unit of work. This terminology was suggested by British physicist Arthur Mason Worthington in his 1900 book 'Dynamics of Rotation' while he was a professor of physics at the Royal Naval Engineering College in Devonport.
In an article on EngineLabs, Greg Acosta explains why pound-feet (or pound-force foot) is the correct term to use, referencing the industry standard adopted by the Society of Automotive Engineers:Newton-meters and pound-feet are both units of torque in the International System of Units. Torque is a measure of the rotational force that causes an object to turn about an axis. 3
If your calculation involves inch-pounds and foot pounds for energy, you can convert between inch-pounds and foot-pounds here.
The chart below features some of the most common torque conversions for newton-meters (Nm) and pound-feet.
Newton-meters to pound-feet chart
| Newton-meters | Pound-feet |
|---|---|
| 1 Nm | 0.738 lb-ft |
| 2 Nm | 1.475 lb-ft |
| 3 Nm | 2.213 lb-ft |
| 4 Nm | 2.950 lb-ft |
| 5 Nm | 3.688 lb-ft |
| 6 Nm | 4.425 lb-ft |
| 7 Nm | 5.163 lb-ft |
| 8 Nm | 5.900 lb-ft |
| 9 Nm | 6.638 lb-ft |
| 10 Nm | 7.376 lb-ft |
| Newton-meters | Pound-feet |
|---|---|
| 10 Nm | 7.376 lb-ft |
| 20 Nm | 14.751 lb-ft |
| 30 Nm | 22.127 lb-ft |
| 40 Nm | 29.502 lb-ft |
| 50 Nm | 36.878 lb-ft |
| 60 Nm | 44.254 lb-ft |
| 70 Nm | 51.629 lb-ft |
| 80 Nm | 59.005 lb-ft |
| 90 Nm | 66.381 lb-ft |
| 100 Nm | 73.756 lb-ft |
| 200 Nm | 147.512 lb-ft |
| 300 Nm | 221.269 lb-ft |
| 400 Nm | 295.025 lb-ft |
| 500 Nm | 368.781 lb-ft |
| 600 Nm | 442.537 lb-ft |
| 700 Nm | 516.294 lb-ft |
| 800 Nm | 590.050 lb-ft |
| 900 Nm | 663.806 lb-ft |
| 1000 Nm | 737.562 lb-ft |
| Note: conversions are rounded to max 3 decimal places. | |
How to convert pound-feet to newton-meters (Nm)
One pound-foot (lb-ft) is equal to 1.356 newton-meters (Nm). To convert pound-feet to newton-meters, multiply your figure by 1.356.
Again, note that we express pound force as lbf to distinguish it from lb mass.
Pound-feet to newton-meters chart
| Pound-feet | Newton-meters |
|---|---|
| 1 lb-ft | 1.356 Nm |
| 2 lb-ft | 2.712 Nm |
| 3 lb-ft | 4.067 Nm |
| 4 lb-ft | 5.423 Nm |
| 5 lb-ft | 6.779 Nm |
| 6 lb-ft | 8.135 Nm |
| 7 lb-ft | 9.491 Nm |
| 8 lb-ft | 10.847 Nm |
| 9 lb-ft | 12.202 Nm |
| 10 lb-ft | 13.558 Nm |
| 20 lb-ft | 27.116 Nm |
| 30 lb-ft | 40.675 Nm |
| 40 lb-ft | 54.233 Nm |
| 50 lb-ft | 67.791 Nm |
| 60 lb-ft | 81.349 Nm |
| 70 lb-ft | 94.907 Nm |
| 80 lb-ft | 108.465 Nm |
| 90 lb-ft | 122.024 Nm |
| 100 lb-ft | 135.582 Nm |
| 150 lb-ft | 203.373 Nm |
| 200 lb-ft | 271.164 Nm |
| 250 lb-ft | 338.954 Nm |
| 300 lb-ft | 406.745 Nm |
| Note: conversions are rounded to max 3 decimal places. | |
For any figures not represented in our Nm and lb-ft chart, please use the converter at the top of the page.
Calculator by Alastair Hazell.References
- A.M Worthington. Dynamics of Rotation.
- EngineLabs. Pound-feet or foot-pounds–which one is it?.
- Khan Academy. What is torque?.
