Convert Ounce-force inches to Kilonewton metres
Convert Ounce-force inches (ozf·in) to Kilonewton metres (kN·m) instantly and accurately.
Conversion Formula
kN·m = ozf·in × 7.061551814e-6
About Ounce-force inches
The ounce-force inch (ozf·in) equals ≈ 7.062 × 10⁻³ N·m, the traditional US unit for small instrument and servo motors. Brushless DC motors for drones, precision positioning stages, and US industrial servo catalogs (Maxon, Pittman) specify stall torque in ozf·in. A typical NEMA 17 stepper motor delivers 80-220 ozf·in. 16 ozf·in = 1 lbf·in. 1 ozf·in ≈ 7.062 × 10⁻³ N·m ≈ 72.0 gf·cm.
About Kilonewton metres
The kilonewton metre (kN·m) equals 1000 N·m, the standard unit for structural and civil engineering bending moments and large-machine torques. Steel beam connection bolts, industrial gearbox output shafts, ship propeller shaft flanges, and large AC induction motor ratings are specified in kN·m. Wind turbine mainshaft torques reach 1-10 MN·m. 1 kN·m = 1000 N·m ≈ 737.6 lbf·ft ≈ 0.7376 kip·ft ≈ 102.0 kgf·m.
Quick Reference Table
| Ounce-force inches (ozf·in) | Kilonewton metres (kN·m) |
|---|---|
| 1 ozf·in | 7.062 × 10-6 kN·m |
| 2 ozf·in | 1.412 × 10-5 kN·m |
| 5 ozf·in | 3.531 × 10-5 kN·m |
| 10 ozf·in | 7.062 × 10-5 kN·m |
| 25 ozf·in | 0.000176539 kN·m |
| 50 ozf·in | 0.000353078 kN·m |
| 100 ozf·in | 0.000706155 kN·m |