How many 80 pound bags equal 1 yd of concrete?

One cubic yard of concrete typically weighs about 4,000 pounds. Since each 80-pound bag of concrete contains approximately 0.6 cubic feet, you would need about 45 bags to equal one cubic yard of concrete. Specifically, 1 cubic yard equals 27 cubic feet, so dividing 27 by 0.6 gives you around 45 bags.