Question: how much is 12 quarts of soil in pounds?
Answer: A denser soil will weigh more; and therefore convert to less quarts per pound. Based on my research on potting soil, each quart weights approximately 0.875 pounds; thus, 10 pounds means roughly 11.43 quarts. 10 Quarts equals 9.4 Liters. There are about 25 and 3/4 dry quarts in a cubic foot.