Soil Amendment Calculator – Easily Calculate Compost, Mulch & Topsoil!
Use our free Soil Amendment Calculator to determine how much compost, mulch, or topsoil you need for your garden beds. Get accurate cubic feet, cubic yards, and bag estimates.
How to Calculate Soil Amendments for Your Garden Beds – How to use this tool:
- Input your garden bed dimensions and the desired amount of amendment to be added. (Ex. a 4 foot by 8 foot bed, add 2 inches of compost.)
- Add multiple garden beds to calculate the material needed for your whole garden.
- Tap “Add Another Bed” to add additional beds.
- Individually enter the dimensions for each garden bed then Calculate Total Amendments after all beds are added.
- Total provided in easy to use units and bagged suggestions.
Input garden Bed Dimensions
Bed 1
Input the depth of material to be added.FAQ
A: Use our soil amendment calculator to input your bed size and depth, and we’ll provide the exact volume you need in cubic feet, cubic yards, and bag estimates.
A: Compost, aged manure, and organic mulch improve soil structure and fertility.
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