Pound-feet to Newton-meters Converter
Enter the torque in pound-feet below to convert it to newton-meters.
Convert Pound-feet to Newton-meters
Enter a value in pound-feet (lb·ft) to convert to newton-meters (N·m).
Pound-foot to Newton-meter Conversion Table
Table showing various pound-foot measurements converted to newton-meters. Click any preset value or arrow to load it into the converter.
| Pound-feet (lb·ft) | Newton-meters (N·m) |
|---|---|
| 1 lb·ft | 1.3558179 N·m |
| 2 lb·ft | 2.7116359 N·m |
| 5 lb·ft | 6.7790897 N·m |
| 10 lb·ft | 13.5581795 N·m |
| 15 lb·ft | 20.3372692 N·m |
| 20 lb·ft | 27.116359 N·m |
| 25 lb·ft | 33.8954487 N·m |
| 30 lb·ft | 40.6745384 N·m |
| 50 lb·ft | 67.7908974 N·m |
| 75 lb·ft | 101.6863461 N·m |
How to Convert Pound-feet to Newton-meters
To convert pound-feet to newton-meters, multiply the torque by the following conversion ratio: 1.3558179 newton-meters/pound-foot.
Since one pound-foot is equal to 1.3558179 newton-meters, you can use this simple formula to convert:
The torque in newton-meters is equal to the torque in pound-feet multiplied by 1.3558179.
For example, here's how to convert 250 pound-feet to newton-meters using the formula above.
How Many Newton-meters Are in a Pound-foot?
There are 1.3558179 newton-meters in a pound-foot, which is why we use this value in the formula above.
Our pound-foot to newton-meter calculator automatically converts your torque measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Pound-feet and newton-meters are both units used to measure torque. Keep reading to learn more about each unit.
What Is a Pound-foot?
A pound-foot is a unit of torque equal to 1.3558179 newton-meters (N·m), the base unit for torque. Equal to 1.355818 N·m. [1]
The pound-foot is classified as a US customary and imperial unit of torque. Pound-feet can be abbreviated as lb·ft; for example, 1 pound-foot can be written as 1 lb·ft.
When working with pound-feet (lb·ft) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, pound-feet (lb·ft) are widely used across standard torque applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Newton-meter?
Coherent SI unit of rotational torque. It serves as a primary reference unit for measuring torque across scientific and practical applications. [2]
The newton-meter is classified as an International System of Units (SI) unit of torque. Newton-meters can be abbreviated as N·m; for example, 1 newton-meter can be written as 1 N·m.
As the primary coherent reference unit for torque in this category, all other torque units are mathematically anchored to the newton-meter (N·m).
In practice, newton-meters (N·m) are widely used across standard torque applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting torque between pound-feet (lb·ft) and newton-meters (N·m), keep full floating-point precision (1 lb·ft = 1.3558179 N·m; 1 N·m = 0.7375621 lb·ft) during intermediate calculations and round only the final newton-meter figure to match your instrument tolerance.
More Pound-foot & Newton-meter Conversions
Need to calculate in the opposite direction? Use our newton-meters to pound-feet converter (N·m to lb·ft) to switch your starting unit immediately. You can also explore related tools such as converting kgf·m to newton-meters, converting pound-inches to newton-meters, or converting pound-feet to pound-inches.
Convert from Pound-feet
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Moment of Force & Torque))·Torque Metrology Standard — Pound-feet (lb·ft) to Newton-meters (N·m)
- [2]NIST App. B.8 SpecificationNIST App. B.8 (NIST SP 811 Alphabetical Conversion Factors)·Unit Specifications: Pound-foot (ft·lbf) (lb·ft) & Newton-meter (N·m)
- [3]BIPM ReferenceBIPM (Mechanics & Rotational Work (N·m))·Conversion Factors & Mathematical Basis (lb·ft to N·m)