C.4 Metric-U.S. System Conversion Factors for Mass 1. Name of commercial product 2. Mass, in grams, stated on label Weight, in pounds or ounces, stated on label 3. Weight in lb (Convert oz to lb if needed.) L1b -g/1 g/lb = 4. g 1 lb = (Experimental factor) 5. True equality 6. Conversion factors How does your experimental factor compare to the standard conversion factor