Convert Pound-Force Foot to Newton Meter
Live bidirectional calculator for Pound-Force Feet (lbf·ft) and Newton Meters (N·m) with verified formula and conversion charts.
Torque7 units
How the Calculation Works (Linear Scaling)
Since 1 Pound-Force Foot = 1.355818 Newton Meters, multiply the value in Pound-Force Feet by 1.355818.
Pound-Force Foot to Newton Meter Conversion Table
Precomputed values for quick reference and printing.
| Pound-Force Foot | Newton Meter |
|---|---|
| 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 | 10.8465 N·m |
| 9 lbf·ft | 12.2024 N·m |
| 10 lbf·ft | 13.5582 N·m |
| 15 lbf·ft | 20.3373 N·m |
| 20 lbf·ft | 27.1164 N·m |
| 25 lbf·ft | 33.8954 N·m |
| 30 lbf·ft | 40.6745 N·m |
| 40 lbf·ft | 54.2327 N·m |
| 50 lbf·ft | 67.7909 N·m |
| 75 lbf·ft | 101.6863 N·m |
| 100 lbf·ft | 135.5818 N·m |
| Newton Meter | Pound-Force Foot |
|---|---|
| 1 N·m | 0.7376 lbf·ft |
| 2 N·m | 1.4751 lbf·ft |
| 3 N·m | 2.2127 lbf·ft |
| 4 N·m | 2.9502 lbf·ft |
| 5 N·m | 3.6878 lbf·ft |
| 6 N·m | 4.4254 lbf·ft |
| 7 N·m | 5.1629 lbf·ft |
| 8 N·m | 5.9005 lbf·ft |
| 9 N·m | 6.6381 lbf·ft |
| 10 N·m | 7.3756 lbf·ft |
| 15 N·m | 11.0634 lbf·ft |
| 20 N·m | 14.7512 lbf·ft |
| 25 N·m | 18.4391 lbf·ft |
| 30 N·m | 22.1269 lbf·ft |
| 40 N·m | 29.5025 lbf·ft |
| 50 N·m | 36.8781 lbf·ft |
| 75 N·m | 55.3172 lbf·ft |
| 100 N·m | 73.7562 lbf·ft |
📌 Standard Benchmark Reference Values
American automotive engine torque rating standard.
ApproximateAbout Pound-Force Foot (lbf·ft)
The imperial/US customary unit of torque, equal to the moment resulting from one pound-force applied perpendicularly to a one-foot lever arm (≈ 1.355818 N·m).
History: Traditional American automotive engineering torque standard.
Common Uses: US car and truck engine torque ratings (e.g. 400 lb-ft), automotive wheel lug torque specs.
About Newton Meter (N·m)
The SI coherent derived unit of torque (moment of force), equal to the rotational force of one newton acting at a perpendicular distance of one meter.
History: Standard metric moment unit formalized to describe rotational mechanical force distinct from the scalar joule.
Common Uses: Automotive engine torque ratings, bolt tightening torque wrenches, electric motor specifications.
❓ Frequently Asked Questions
How many Newton Meters are in 1 Pound-Force Foot?
There are exactly 1.355818 Newton Meters in 1 Pound-Force Foot (1 lbf·ft = 1.355818 N·m).
What is the formula to convert Pound-Force Foot to Newton Meter?
The formula is: Newton Meter = Pound-Force Foot × 1.355818. Since 1 Pound-Force Foot = 1.355818 Newton Meters, multiply the value in Pound-Force Feet by 1.355818.
How do I convert 1 lbf·ft to N·m manually?
To convert 1 lbf·ft to N·m: apply the formula Newton Meter = Pound-Force Foot × 1.355818. Substituting gives: 1 × 1.355818 = 1.3558 N·m.