Pound-force feet to Newton metres
1 pound-force foot = 1.3558 newton metres · 1 N·m = 0.73756 lbf·ft
1 pound-force foot = 1.3558 newton metres
How it’s calculated
N·m = lbf·ft × 1.355817948
- Multiply the value in pound-force feet by 1.355817948.
- To go back, divide by 1.355817948 (or multiply by 0.7375621493).
- 1 lbf·ft = 1.355817948 N·m · 1 N·m = 0.7375621493 lbf·ft
Show worked solutionFactor, unit cancellation and rounding, step by step
Find the conversion factor
By definition 1 lbf·ft = 1.3558179483314 N·m. Source: NIST SP 811 / Handbook 44; BIPM SI Brochure (9th ed.) (SI prefixes and accepted units).
Multiply by the factor written as a fraction
Put lbf·ft in the denominator so it cancels, leaving N·m.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 1.3558 N·m
1 lbf·ft in other units
Batch convert lbf·ft → N·m
- 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
Quick examples
- 1 pound-force foot = 1.3558 newton metres
- 5 pound-force feet = 6.7791 newton metres
- 10 pound-force feet = 13.558 newton metres
- 25 pound-force feet = 33.895 newton metres
- 100 pound-force feet = 135.58 newton metres
About these units
Pound-force foot (lbf·ft)
US & imperial (identical)
≈ 1.355 818 N·m. In torque context "ft-lb" and "lb-ft" mean the same quantity.
1 lbf·ft = 1.355817948 N·m
Source: NIST SP 811 / Handbook 44
Newton metre (N·m)
SI (metric)
Base unit
Source: BIPM SI Brochure (9th ed.) (SI prefixes and accepted units)
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 |
Related conversions
Frequently asked questions
How do I convert pound-force feet to newton metres?
Use N·m = lbf·ft × 1.355817948. Multiply the value in pound-force feet by 1.355817948.
How many newton metres are in 1 pound-force foot?
1 pound-force foot (lbf·ft) equals 1.3558 newton metres (N·m); more precisely 1.355817948.
How many pound-force feet are in 1 newton metre?
1 newton metre (N·m) equals 0.73756 pound-force feet (lbf·ft); more precisely 0.7375621493.
What is 10 lbf·ft in N·m?
10 pound-force feet = 13.558 newton metres.
What is a pound-force foot?
≈ 1.355 818 N·m. In torque context "ft-lb" and "lb-ft" mean the same quantity.
Formula: N·m = lbf·ft × 1.355817948. Factors last reviewed 2026-10-27.