Pound-force inch (lbf·in)
One pound-force acting at one inch: 4.4482216152605 × 0.0254 N·m.
What is a pound-force inch?
- Symbol
- lbf·in
- Quantity
- Torque
- Unit system
- US customary
- Definition
- One pound-force acting at one inch: 4.4482216152605 × 0.0254 N·m.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in the US for small fasteners, bicycle parts and torque screwdrivers.
Pound-force inch in other torque units
- 1 lbf·in = 0.1129848290276167 N·mPound-force inch to Newton meter converter
- 1 lbf·in = 0.0001129848290276167 kN·mKilonewton meter
- 1 lbf·in = 11.29848290276167 N·cmNewton centimeter
- 1 lbf·in = 112.9848290276167 N·mmNewton millimeter
- 1 lbf·in = 1129848.290276167 dyn·cmDyne centimeter
- 1 lbf·in = 0.011521246198 kgf·mKilogram-force meter
- 1 lbf·in = 1.1521246198 kgf·cmKilogram-force centimeter
- 1 lbf·in ≈ 0.08333333333 lbf·ftPound-force inch to Pound-force foot converter
- 1 lbf·in = 16 ozf·inOunce-force inch
Pound-force inch quick reference
| Pound-force inch | Newton meter | Pound-force foot | Kilonewton meter |
|---|---|---|---|
| 1 lbf·in | = 0.1129848290276167 N·m | ≈ 0.08333333333 lbf·ft | = 0.0001129848290276167 kN·m |
| 10 lbf·in | = 1.129848290276167 N·m | ≈ 0.8333333333 lbf·ft | = 0.001129848290276167 kN·m |
| 100 lbf·in | = 11.29848290276167 N·m | ≈ 8.333333333 lbf·ft | = 0.01129848290276167 kN·m |
| 1000 lbf·in | = 112.9848290276167 N·m | ≈ 83.33333333 lbf·ft | = 0.1129848290276167 kN·m |
Where the pound-force inch fits
The next smaller torque unit is the kilogram-force centimeter (kgf·cm). 1 lbf·in = 1.1521246198 kgf·cm, and 1 kgf·cm ≈ 0.8679616621 lbf·in.
The next larger torque unit is the newton meter (N·m). 1 lbf·in = 0.1129848290276167 N·m, and 1 N·m ≈ 8.850745791 lbf·in.
Frequently asked questions
- How many newton meters are in one pound-force inch?
- One pound-force inch = 0.1129848290276167 N·m (newton meters).
- How many pound-force feet are in one pound-force inch?
- One pound-force inch ≈ 0.08333333333 lbf·ft (pound-force feet).
- How many kilonewton meters are in one pound-force inch?
- One pound-force inch = 0.0001129848290276167 kN·m (kilonewton meters).