Soil & Raised Bed Calculator

Figure out exactly how much soil to buy for a raised bed, container, or Square Foot Garden — broken down into a real mix ratio and a bag-count shopping list.

1. Bed or container shape

Length (ft)

Width (ft)

Height (ft)

How many identical beds/containers?

2. Soil mix

You’ll need

32.0

Cubic Feet

1.19

Cubic Yards

239

Gallons

Shopping list (Raised Bed (Classic Mix))

Quality Topsoil

10.7 cu ft

~1.5 cu ft bags

Compost (well-aged)

10.7 cu ft

~1.5 cu ft bags

Coarse Perlite or Vermiculite

10.7 cu ft

~4 cu ft bags

📖 See this mix explained in the Children's Vegetable Garden guide →

Bag counts assume common retail sizes — check your product's label, since bag volume varies by brand.

Guides for building your bed

📐Square Foot Gardening 🌱No-Dig Gardening 🧒Children's Vegetable Garden

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