Raised Bed Soil Volume Calculator

Figure out exactly how much soil it takes to fill a raised garden bed before you buy a single bag. Enter the inside length and width of the frame in feet and the depth you want to fill in inches, and the calculator returns the volume in cubic feet and cubic yards. It also converts that into the number of standard bags for the size you buy, since bagged garden soil is usually sold in one and a half or two cubic foot bags. Fill depth matters more than people expect, because doubling the depth doubles the soil, so most gardeners fill vegetable beds ten to twelve inches deep. Everything is worked out instantly in your browser, so you can compare bed sizes and depths in seconds without any signup.