Raised bed soil calculator
Soil for raised beds: cubic feet, yards and bag counts.
Short answer: cu ft = L × W × (depth ÷ 12). Common bag size: 1.5 cu ft. 4 × 8 ft × 12" = 32 cu ft = 22 bags of 1.5 cu ft. Enter your measurements above and the raised bed soil calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Cubic feet
32.0
Cubic yards
1.19
1.5 cu ft bags
22
How does the raised bed soil calculator work?
cu ft = L × W × (depth ÷ 12). Common bag size: 1.5 cu ft.
What does a worked example look like?
4 × 8 ft × 12" = 32 cu ft = 22 bags of 1.5 cu ft.
What do people ask most?
›Best mix?
Classic 'Mel's Mix': 1/3 peat, 1/3 compost, 1/3 vermiculite.
›How deep for veggies?
12" for most vegetables; 18"+ for root crops.
Which garden calculator should you use next?
Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.