Question: how to convert lbf to lbm?
Answer: Converting between Pounds-mass (lbm) and Pounds-force (lbf) 1. Use Newton's 2nd Law (F=ma) to find weight in lbm∙ft/s2. 2 2. Convert weight from lbm∙ft/s2 to lbf using the relationship 1 lbf=32.174 lbm∙ft/s2.