Convert Ounce-inches to Kilogram-force Centimeters

Formula

kgf·cm = ozf·in × 0.0720077887375

or kgf·cm = ozf·in ÷ 13.88738659432

Derivation from SI units:

• 1 ozf·in = 1/16 lbf·in = 0.00706155181 N·m
• 1 kgf·cm = 9.80665 N × 0.01 m = 0.0980665 N·m (exact)
• 1 ozf·in = 0.007061551814226 N·m ÷ 0.0980665 N·m per kgf·cm = 0.0720077887375 kgf·cm

Both units are defined exactly, so the factor is exact. Ounce-inch definition: ounce-inch; Kilogram-force Centimeter definition: kilogram-force centimeter.

Worked examples

1. A reading of 10 ozf·in converts to 0.7200778874 kgf·cm.
   10 ozf·in × 0.07200778874 = 0.7200778874 kgf·cm
2. A value of 100 ozf·in is 7.200778874 kgf·cm.
   100 ozf·in × 0.07200778874 = 7.200778874 kgf·cm

Where it's used

Ounce-inches are used for stepper and servo motor holding torque, while kilogram-force centimeters appear in RC servo torque ratings (e.g. 13 kg·cm). Both measure torque (moment of force), so the conversion is a fixed factor.

Ounce-inch 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, "ounce (avoirdupois)-force inch".
• 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" with centi.

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