How many cubic yards of topsoil do I need?
Enter your project length, width, and depth. The calculator converts the volume into cubic yards for planning.
Free planning tool
Topsoil Calculator
Estimate how much topsoil you need from length, width, depth, overage, and bag size. Results are approximate planning estimates.
Free to useInstant estimateNo account needed
Formula
How the estimate is calculated
We multiply area by depth, convert inches to feet, and then convert cubic feet into cubic yards.
area = length × widthdepth ft = depth inches ÷ 12cubic yards = cubic feet ÷ 27bags = ceil(cubic feet with overage ÷ bag size)FAQ
Topsoil calculator questions
How many bags of topsoil are in a cubic yard?
One cubic yard is 27 cubic feet. Divide 27 by the bag size in cubic feet to estimate how many bags equal one cubic yard.