Convert Gram-force millimetres to Kilonewton metres
Convert Gram-force millimetres (gf·mm) to Kilonewton metres (kN·m) instantly and accurately.
Conversion Formula
kN·m = gf·mm × 9.806650000e-9
About Gram-force millimetres
The gram-force millimetre (gf·mm) equals 9.80665 × 10⁻⁶ N·m, the natural unit for precision micro-mechanisms. Swiss watchmaking datasheets list hairspring and balance-wheel detent torques in gf·mm; micro-servo holding torques, precision force gauge spring calibration, and miniature dental handpiece torque limits also fall in this range. A typical watch hairspring torque is 0.1-5 gf·mm. 1 gf·mm = 9.80665 × 10⁻⁶ N·m = 100 dyn·cm = 0.1 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
| Gram-force millimetres (gf·mm) | Kilonewton metres (kN·m) |
|---|---|
| 1 gf·mm | 9.807 × 10-9 kN·m |
| 2 gf·mm | 1.961 × 10-8 kN·m |
| 5 gf·mm | 4.903 × 10-8 kN·m |
| 10 gf·mm | 9.807 × 10-8 kN·m |
| 25 gf·mm | 2.452 × 10-7 kN·m |
| 50 gf·mm | 4.903 × 10-7 kN·m |
| 100 gf·mm | 9.807 × 10-7 kN·m |