Convert Pound-Force Inch to Newton Meter
Live bidirectional calculator for Pound-Force Inches (lbf·in) and Newton Meters (N·m) with verified formula and conversion charts.
Torque7 units
How the Calculation Works (Linear Scaling)
Since 1 Newton Meter = 8.850746 Pound-Force Inches, divide the value in Pound-Force Inches by 8.850746.
Pound-Force Inch to Newton Meter Conversion Table
Precomputed values for quick reference and printing.
| Pound-Force Inch | Newton Meter |
|---|---|
| 1 lbf·in | 0.113 N·m |
| 2 lbf·in | 0.226 N·m |
| 3 lbf·in | 0.339 N·m |
| 4 lbf·in | 0.4519 N·m |
| 5 lbf·in | 0.5649 N·m |
| 6 lbf·in | 0.6779 N·m |
| 7 lbf·in | 0.7909 N·m |
| 8 lbf·in | 0.9039 N·m |
| 9 lbf·in | 1.0169 N·m |
| 10 lbf·in | 1.1298 N·m |
| 15 lbf·in | 1.6948 N·m |
| 20 lbf·in | 2.2597 N·m |
| 25 lbf·in | 2.8246 N·m |
| 30 lbf·in | 3.3895 N·m |
| 40 lbf·in | 4.5194 N·m |
| 50 lbf·in | 5.6492 N·m |
| 75 lbf·in | 8.4739 N·m |
| 100 lbf·in | 11.2985 N·m |
| Newton Meter | Pound-Force Inch |
|---|---|
| 1 N·m | 8.8507 lbf·in |
| 2 N·m | 17.7015 lbf·in |
| 3 N·m | 26.5522 lbf·in |
| 4 N·m | 35.403 lbf·in |
| 5 N·m | 44.2537 lbf·in |
| 6 N·m | 53.1045 lbf·in |
| 7 N·m | 61.9552 lbf·in |
| 8 N·m | 70.806 lbf·in |
| 9 N·m | 79.6567 lbf·in |
| 10 N·m | 88.5075 lbf·in |
| 15 N·m | 132.7612 lbf·in |
| 20 N·m | 177.0149 lbf·in |
| 25 N·m | 221.2686 lbf·in |
| 30 N·m | 265.5224 lbf·in |
| 40 N·m | 354.0298 lbf·in |
| 50 N·m | 442.5373 lbf·in |
| 75 N·m | 663.8059 lbf·in |
| 100 N·m | 885.0746 lbf·in |
About Pound-Force Inch (lbf·in)
One twelfth of a pound-force foot (≈ 0.112985 N·m), representing one pound-force applied to a one-inch lever arm.
History: Standard US engineering unit for small fasteners and precision mechanical assemblies.
Common Uses: Firearm action screw torque, bicycle carbon fiber seatpost clamps, aircraft instrument fasteners.
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 Inch?
There are exactly 0.112985 Newton Meters in 1 Pound-Force Inch (1 lbf·in = 0.112985 N·m).
What is the formula to convert Pound-Force Inch to Newton Meter?
The formula is: Newton Meter = Pound-Force Inch / 8.850746. Since 1 Newton Meter = 8.850746 Pound-Force Inches, divide the value in Pound-Force Inches by 8.850746.
How do I convert 1 lbf·in to N·m manually?
To convert 1 lbf·in to N·m: apply the formula Newton Meter = Pound-Force Inch / 8.850746. Substituting gives: 1 / 8.850746 = 0.113 N·m.