Convert torque units — Newton-meter, pound-force foot, kilogram-force meter and more.
| Unit | Name | Value |
|---|---|---|
| N·m | Newton-meter | 1.35582 |
| kN·m | Kilonewton-meter | 0.00135582 |
| lbf·in | Pound-force Inch | 12 |
| kgf·m | Kilogram-force Meter | 0.13825516 |
| kgf·cm | Kilogram-force Centimeter | 13.825516 |
| dyn·cm | Dyne-centimeter | 13558200 |
Formula: Kilonewton-meter = Pound-force Foot × 0.001356
Multiply any Pound-force Foot value by 0.001356 to get Kilonewton-meter.
Reverse: Pound-force Foot = Kilonewton-meter × 737.6
Common torque values — factor: 1 lbf·ft = 0.001356 kN·m
| Pound-force Foot (lbf·ft) | Kilonewton-meter (kN·m) | Context |
|---|---|---|
| 0.001 lbf·ft | 1.356e-06 kN·m | Tiny |
| 0.1 lbf·ft | 0.0001356 kN·m | Small mechanism |
| 1 lbf·ft | 0.001356 kN·m | 1 lbf·ft |
| 5 lbf·ft | 0.006779 kN·m | Small fastener |
| 10 lbf·ft | 0.01356 kN·m | Wheel spoke |
| 50 lbf·ft | 0.06779 kN·m | Bicycle wheel |
| 100 lbf·ft | 0.1356 kN·m | Small engine |
| 200 lbf·ft | 0.2712 kN·m | Compact car engine |
| 300 lbf·ft | 0.4067 kN·m | Mid-size car |
| 400 lbf·ft | 0.5423 kN·m | Performance car |
| 500 lbf·ft | 0.6779 kN·m | Large V8 |
| 650 lbf·ft | 0.8813 kN·m | Record truck torque |
| 1000 lbf·ft | 1.356 kN·m | 1,000 lbf·ft |
| 5000 lbf·ft | 6.779 kN·m | Industrial |
| 1e+04 lbf·ft | 13.56 kN·m | Heavy machinery |
1 lbf·ft = 0.001356 kN·m.
Use N·m as the bridge: convert lbf·ft → N·m → kN·m.
Multiply result by 737.6 to recover the original lbf·ft value.
Specifies engine torque output, drivetrain components, and wheel bolt torque in N·m and lbf·ft.
Designs fastener assemblies with torque specifications to achieve required bolt preload.
Selects motors and servos based on torque ratings in N·m or kgf·cm for joint actuation.
Calculates bending moments in beams and frames — moment = torque in structural analysis.
Follows torque charts in lbf·in and lbf·ft for airframe and engine fasteners per maintenance manuals.
Applies correct torque to flanges, pipe fittings, and coupling bolts using calibrated torque wrenches.
Pound-force foot (lbf·ft) is the standard Imperial torque unit in the United States, defined as the torque from a one pound-force applied one foot from the pivot. One lbf·ft = 1.35582 N·m.
lbf·ft dominates US automotive engineering: engine torque curves, wheel bolt torque specs, driveshaft specifications, and transmission ratings. A typical passenger car engine produces 150–300 lbf·ft; performance trucks can exceed 1,000 lbf·ft.
Interesting fact: The world's highest production-car torque record is held by the Dodge Ram TRX at 650 lbf·ft (881 N·m). Electric motors can deliver maximum torque instantly — Tesla Model S Plaid produces 1,020 lbf·ft (1,383 N·m).
The kilonewton-meter (kN·m) equals 1,000 N·m and is used for large-scale torque in structural engineering, heavy machinery, and civil infrastructure. Bridge bolts, crane slewing rings, and wind turbine gearboxes operate in the kN·m range.
Structural engineering uses kN·m for bending moments in beams, columns, and foundations. A typical car wheel bolt is torqued to about 0.1 kN·m; a large wind turbine main shaft may experience torques of 1,000–10,000 kN·m.
Interesting fact: The torque needed to loosen a rusted M24 bolt in civil construction can exceed 1 kN·m. The main rotor shaft of a 5 MW offshore wind turbine transmits over 4,000 kN·m of torque in high winds.
Converting Pound-force Foot to Kilonewton-meter is common across automotive, mechanical, robotics, and structural engineering. Metric countries use N·m and kN·m; the US uses lbf·ft and lbf·in; robotics uses kgf·cm. Accurate conversion is essential when working with international workshop manuals, equipment specs, and torque wrenches.
Quick reference: 10 lbf·ft = 0.01356 kN·m. Reverse: 1 kN·m = 737.6 lbf·ft. Exact factor: 1 lbf·ft = 0.001356 kN·m.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.