Calculating cubic yards comes down to one formula: length times width times depth, with every measurement in feet, then divide by 27. This guide walks through the steps with real examples.
First, measure the area in feet. Second, convert the depth from inches to feet by dividing by 12. Third, multiply length by width by depth to get cubic feet. Finally, divide by 27 to convert to cubic yards. For an irregular shape, break it into rectangles and add them together.
First, measure the area in feet. Second, convert the depth from inches to feet by dividing by 12. Third, multiply length by width by depth to get cubic feet. Finally, divide by 27 to convert to cubic yards. For an irregular shape, break it into rectangles and add them together.
Length (ft) × width (ft) × depth (ft) ÷ 27 = cubic yards.
Divide inches by 12. For example, 6 inches = 0.5 feet, and 4 inches = 0.333 feet.