Work out how much soil mix you need to fill your raised beds and how to split it.
How this works
Volume = length x width x height x number of beds, plus 15% because soil settles. A classic mix is 60% topsoil, 30% compost and 10% grit or perlite. Hugelkultur fills the bottom third with logs and branches, so you buy a third less.
Questions people ask
How do I use the Raised Bed Soil Calculator?
Fill in the fields, starting with “Bed length”, “Bed width” and “Bed height”, and change any other options that match your home. The answer, a drawing and practical tips update as you type, and the Copy link button saves your numbers in a link you can share.
Is the Raised Bed Soil Calculator free?
Yes. The Raised Bed Soil Calculator is free, with no sign-up, and works on phones, tablets and computers. The results are estimates to help you plan, so check with a qualified professional before structural, electrical, gas or plumbing work.