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Raised Bed Soil Calculator

Soil mix for raised beds, split into topsoil, compost and drainage material.

Enter values

Results update as you type.

Result

Total soil needed

2.333 m³

Fill to about 90% — soil settles and you want a lip to stop water running off.

Per bed
1.166 m³
In litres
2,333
Topsoil (60%)
1.4 m³
Compost (30%)
0.7 m³
Grit or perlite (10%)
0.233 m³
60 litre compost bags
12
Cost
$128.30

About the Raised Bed Soil Calculator

Soil mix for raised beds, split into topsoil, compost and drainage material.

Also known as: raised bed calculator, garden bed soil, veg bed soil mix, planter soil volume.

How to use this calculator

  1. Enter bed length, bed width, bed height, number of beds and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

volume = length × width × height × fill level × beds

Worked example

Using the values pre-filled in the calculator above:

  • Bed length = 2.4 m
  • Bed width = 1.2 m
  • Bed height = 45 cm
  • Number of beds = 2
  • Fill to = 90 %
  • Price per m³ = 55

the calculator returns:

  • Total soil needed: 2.333 m³
  • Per bed: 1.166 m³
  • In litres: 2,333
  • Topsoil (60%): 1.4 m³