Convert Pound-force feet to Gram-force metres
Convert Pound-force feet (lbf·ft) to Gram-force metres (gf·m) instantly and accurately.
Conversion Formula
gf·m = lbf·ft × 138.2549544
About Pound-force feet
The pound-force foot (lbf·ft) equals ≈ 1.35582 N·m, the dominant torque unit in North American automotive and mechanical engineering. SAE engine performance tests, US vehicle lug-nut torque specs (80-100 lbf·ft), and American industrial gearbox catalogs all use lbf·ft. V8 truck engines produce 400-600 lbf·ft; diesel pickups exceed 900 lbf·ft. 1 lbf·ft ≈ 1.35582 N·m = 12 lbf·in ≈ 192 ozf·in.
About Gram-force metres
The gram-force metre (gf·m) equals 9.80665 × 10⁻³ N·m, used in scientific torsion and balance instrument calibration. Analytical balance torsion spring constants, laser-gyroscope gimbal friction torques, and lightweight UAV propeller starting torques are expressed in gf·m. It bridges gf·cm and N·m in laboratory-scale rotating experiments. 1 gf·m = 9.80665 × 10⁻³ N·m = 100 gf·cm = 0.001 kgf·m.
Quick Reference Table
| Pound-force feet (lbf·ft) | Gram-force metres (gf·m) |
|---|---|
| 1 lbf·ft | 138.255 gf·m |
| 2 lbf·ft | 276.51 gf·m |
| 5 lbf·ft | 691.275 gf·m |
| 10 lbf·ft | 1382.55 gf·m |
| 25 lbf·ft | 3456.37 gf·m |
| 50 lbf·ft | 6912.75 gf·m |
| 100 lbf·ft | 13825.5 gf·m |