Convert Kilogram-force Meters to Pound-inches

Formula

lbf·in = kgf·m × 86.79616621452

Derivation from SI units:

• 1 kgf·m = 9.80665 N × 1 m = 9.80665 N·m (exact)
• 1 lbf·in = 4.4482216152605 N × 0.0254 m = 0.1129848290276 N·m
• 1 kgf·m = 9.80665 N·m ÷ 0.1129848290276 N·m per lbf·in = 86.79616621452 lbf·in

Both units are defined exactly, so the factor is exact. Kilogram-force Meter definition: kilogram-force meter; Pound-inch definition: pound-inch.

Worked examples

1. A reading of 10 kgf·m converts to 867.9616621 lbf·in.
   10 kgf·m × 86.79616621 = 867.9616621 lbf·in
2. A value of 30 kgf·m is 2603.884986 lbf·in.
   30 kgf·m × 86.79616621 = 2603.884986 lbf·in

Where it's used

Kilogram-force Meters are used for older Japanese and European engine torque specs, while pound-inches appear in small fastener and electrical-terminal torques. Both measure torque (moment of force), so the conversion is a fixed factor.

Kilogram-force Meter to other torque units

Frequently asked questions

Sources

• Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilogram-force meter (kgf·m)".
• Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force inch (lbf·in)".

Last reviewed: 2026-10-15. Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.