• Oct 10, 2025 172lb To Kg FAQs) 1. What is the exact conversion factor for lbs to kg? The exact conversion factor is 0.453592 kg/lb. However, for most purposes, 0.4536 kg/lb or even the approximate value of 0.45 kg/lb can provide sufficient accuracy. 2. Can I use a different conversion factor? By Jacques Renner
