33 x 037 122 cubic yards. Follow the steps below to calculate the total number of cubic yards required. Concrete Cubic Yards Formulas Use the following formulas to calculate the concrete needed for various types of pours.
18 feet long 18 feet wide 6 inches deep this would be.
Length x width x depth divided by 27 of cubic yards example. 4027 148 cubic yards of concrete For pouring concrete footings 20 feet long 2 feet wide and 1 foot long you would need 148 yards of concrete. To determine how many bags of concrete you will need divide the total cubic yards needed by the yield. All concrete is estimated in cubic yards one cubic yard 27 cubic feet.