Garden Bed Soil Calculator
🌿 Free Garden Tool
Garden Bed
Soil Calculator
Enter your garden bed dimensions and instantly find out how much soil or compost you need — no guesswork, no waste.
✦
📐
Enter Your Bed Dimensions
Works for raised garden beds, planter boxes & grow beds
Units
cm
cm
cm
⚠ Please enter values for all three dimensions.
📊 Your Results
—
m³
Cubic Metres of Soil
—
bags
× 30L bags needed
—
bags
× 25L bags needed
Ready to fill your garden bed? Browse our range of raised garden beds — Melbourne-fulfilled, Australia-wide delivery.
Shop Raised Beds →How to Measure Your Garden Bed
1
Measure the lengthThe longest inside edge of your bed, tip to tip.
2
Measure the widthThe shorter inside edge, side to side.
3
Measure the depthHow deep you want to fill — usually 20–30 cm for veggies.
Results are a guide only. Actual soil requirements may vary based on soil type, settling, and fill level.
We recommend purchasing 10–15% extra to allow for settling. Always check bag sizes with your local supplier.