Convert Poundal feet to Kilogram-force metres
Convert Poundal feet (pdl·ft) to Kilogram-force metres (kgf·m) instantly and accurately.
Conversion Formula
kgf·m = pdl·ft × 0.004297095348
About Poundal feet
The poundal foot (pdl·ft) equals ≈ 0.04214 N·m, the torque unit of the absolute foot-pound-second system, where force is in poundals (1 pdl = 1 lb·ft/s²) rather than pound-force. It appeared in pre-SI British and American engineering texts and NACA aerodynamic stability reports alongside slug inertia values. 1 pdl·ft = 0.45359237 × 0.3048² N·m ≈ 0.04214 N·m ≈ 0.3730 lbf·in.
About Kilogram-force metres
The kilogram-force metre (kgf·m) equals exactly 9.80665 N·m, used in pre-SI European and legacy Asian engineering. Soviet/Russian GOST standards, early JIS turbine and compressor specifications, and older DIN automotive standards listed torque in kgf·m. A car wheel bolt at 10 kgf·m ≈ 98.1 N·m. 1 kgf·m = 9.80665 N·m = 100 kgf·cm ≈ 7.233 lbf·ft ≈ 86.80 lbf·in.
Quick Reference Table
| Poundal feet (pdl·ft) | Kilogram-force metres (kgf·m) |
|---|---|
| 1 pdl·ft | 0.0042971 kgf·m |
| 2 pdl·ft | 0.00859419 kgf·m |
| 5 pdl·ft | 0.0214855 kgf·m |
| 10 pdl·ft | 0.042971 kgf·m |
| 25 pdl·ft | 0.107427 kgf·m |
| 50 pdl·ft | 0.214855 kgf·m |
| 100 pdl·ft | 0.42971 kgf·m |