Blend your own raised bed soil instead of buying premixed by working out the cubic feet of each ingredient. Enter the total bed volume you need in cubic feet, then set the percentage of compost, topsoil and an aeration ingredient such as coarse sand, perlite or vermiculite. A classic vegetable blend runs about a third compost, a third topsoil and a third aeration, but you can tune the split for heavy feeders or drainage. The calculator keeps the three shares in view and shows the exact cubic feet of each so you can price out bags or bulk deliveries. It flags when your percentages do not add up to a hundred so the mix stays balanced. All math runs locally in your browser with no signup.
Blend your own raised bed soil instead of buying premixed by working out the cubic feet of each ingredient. Enter the total bed volume you need in cubic feet, then set the percentage of compost, topsoil and an aeration ingredient such as coarse sand, perlite or vermiculite.
Yes. Garden Bed Soil Mix Calculator is completely free, with no sign-up and no usage limits.
Yes. Garden Bed Soil Mix Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Garden Bed Soil Mix Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.