The Quikrete 52376 Fast Setting Concrete Mix comes in 50 lb (22.7 kg) bags. Each bag of this fast-setting concrete mix will yield approximately 0.375 cubic feet (11 liters) of mixed concrete. To put it in perspective, you can set a 4-inch (102 mm) diameter post in a 10-inch (254 mm) diameter hole using two bags of this concrete mix. Remember that the amount of water needed for mixing depends on soil conditions. Typically, you’ll require about 1 gallon (3.8 liters) of water per 50 lb bag. So, when working with this Quikrete product, keep these measurements in mind for a successful concrete project!