Choose the Round Column or Round Slab on the concrete calculator. Input length width and depth of the area. Cubic Yards to be filled L W 1 27.
Since the measurement is currently in cubic feet you need to convert that to cubic yards.
Do this by multiplying the cubic feet by037037037. Convert the volume into cubic yards or cubic meters as needed. Step 2 Multiply the length of the proposed concrete slab by the width of the slab to calculate the area of the slab in square yards. Multiply the width times the length times the height W L H or use our volume calculator to find the cubic yardage.