Convert Gram-force millimetres to Newton metres
Convert Gram-force millimetres (gf·mm) to Newton metres (N·m) instantly and accurately.
Conversion Formula
N·m = gf·mm × 9.806650000e-6
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 Newton metres
The newton metre (N·m) is the SI coherent derived unit of torque and bending moment. Car engine torque is commonly quoted in N·m - a family hatchback delivers 150-250 N·m; a performance saloon 400-600 N·m. Fastener pre-load torques, EV traction-motor ratings, and structural connection bolt specifications are all given in N·m. 1 N·m = 100 N·cm = 1000 N·mm ≈ 0.7376 lbf·ft ≈ 8.851 lbf·in.
Quick Reference Table
| Gram-force millimetres (gf·mm) | Newton metres (N·m) |
|---|---|
| 1 gf·mm | 9.807 × 10-6 N·m |
| 2 gf·mm | 1.961 × 10-5 N·m |
| 5 gf·mm | 4.903 × 10-5 N·m |
| 10 gf·mm | 9.807 × 10-5 N·m |
| 25 gf·mm | 0.000245166 N·m |
| 50 gf·mm | 0.000490333 N·m |
| 100 gf·mm | 0.000980665 N·m |