by shill » Wed Jun 29, 2005 5:55 am
1 g/cm³ * 1 lb/453.59237 g * (30.48 cm/1 ft)³ = 28316.846592/453.59237 lb/ft³ = approx. 62.43 lb/ft³. Therefore, multiply by 62.43 to get from grams per cubic centimeter to pounds per cubic foot, and divide by it if you want to convert back.