What this conversion means in practice
Inch-pound and foot-pound dial readings often need newton-meters when the fastener standard or calibration certificate is SI-first.
The exact relationship here is 1 lb·ft = 1.3558179483 N·m, consistent with expressing both units relative to newton-meters (N·m).
How to convert pound-force foot to newton meter
Multiply the pound-force foot value by 1.3558179483 to get newton meter.
Example: 1 lb·ft × 1.3558179483 = 1.3558179483 N·m.
Pound-force foot and Newton meter
This focused page locks to the unit pair above so you can quote or audit one factor without scrolling the full dropdown list. For context on other rows, open the parent converter from the site navigation.
Pound-force foot to Newton meter conversion table
| Pound-force foot (lb·ft) | Newton meter (N·m) |
|---|---|
| 0.1 lb·ft | 0.13558179483 N·m |
| 1 lb·ft | 1.3558179483 N·m |
| 2 lb·ft | 2.7116358966 N·m |
| 5 lb·ft | 6.7790897415 N·m |
| 10 lb·ft | 13.558179483 N·m |
| 20 lb·ft | 27.116358966 N·m |
| 50 lb·ft | 67.790897415 N·m |
| 100 lb·ft | 135.58179483 N·m |
Pound-force foot to Newton meter FAQ
lb·ft to N·m: dry versus lubricated torque notes still apply after conversion.
How do I convert lb·ft to N·m?
Multiply the value in lb·ft by 1.3558179483 to obtain N·m. That factor is the ratio of the two units in the same base system as the site’s full converter.
Is this factor the same as the main converter tool?
Yes. The numeric relationship uses the same unit definitions and base normalization as the corresponding converter on CalcRegistry.
Why might my hand calculation differ slightly?
Rounding after intermediate steps, display precision limits, or mixing alternate definitions (for example different “horsepower” variants) can shift the last digits. Use this page’s factor end-to-end for consistency.