The volume of concrete mix yielded from one bag of Sakrete 65200940 60-lb. Concrete Mix depends on the mix ratio and the intended use. However, a common mix ratio for this type of concrete mix is approximately 0.45 cubic feet per 60-pound bag. So, one bag of Sakrete 65200940 60-lb. Concrete Mix typically yields around 0.45 cubic feet of concrete when mixed according to the manufacturer's instructions. Keep in mind that the actual yield may vary slightly depending on factors such as the consistency of the mix and the application technique.