Use a more precise conversion factor if you need a more precise measurement. 1 g = 0.00220462262 lb. 1 lb = 453.592 g (if you want to convert pounds to grams, multiply number of pounds by 453.592)
If you remember that a kilogram weighs 2.2 pounds, this conversion is much easier. After all, 1 kilogram = 1000 grams. So, 1 gram must be one one-thousandth the weight of a kilogram, or .0022lbs.
--Multiply your number of grams to by .0022 to convert to pounds