How many lbs of dry compost is 5 liters?

To convert liters of dry compost to pounds, you need to know the density of the compost. On average, dry compost has a density of about 0.4 to 0.6 grams per cubic centimeter. Using an average density of 0.5 g/cm³, 5 liters (which is 5,000 cubic centimeters) would weigh approximately 11 pounds.