Enter the length, width, and height of the garden bed into the calculator to determine the volume of soil needed. This calculator can also evaluate any of the variables given the others are known.

Raised Garden Bed Formula

The following formula is used to calculate the volume of soil needed for a raised garden bed.

V = L * W * H

Variables:

  • V is the volume of soil needed (cubic feet) L is the length of the garden bed (feet) W is the width of the garden bed (feet) H is the height of the garden bed (feet)

To calculate the volume of soil needed for a raised garden bed, multiply the length of the garden bed by the width, then multiply the result by the height. This will give you the total volume of soil needed in cubic feet.

What is a Raised Garden Bed?

A Raised Garden Bed is a type of garden that is built above the natural ground level. It is typically enclosed with a frame made of wood, stone, or other materials, and filled with soil and compost. This type of gardening is beneficial for growing small plots of vegetables and flowers as it prevents pathway weeds from entering the garden soil, provides good drainage, and serves as a barrier to pests such as slugs and snails. The soil in raised beds also warms up more quickly in spring, allowing for earlier planting.

How to Calculate Raised Garden Bed?

The following steps outline how to calculate the volume of soil needed for a Raised Garden Bed.


  1. First, determine the length of the garden bed (L) in feet.
  2. Next, determine the width of the garden bed (W) in feet.
  3. Next, determine the height of the garden bed (H) in feet.
  4. Next, gather the formula from above = V = L * W * H.
  5. Finally, calculate the volume of soil needed for the Raised Garden Bed.
  6. After inserting the variables and calculating the result, check your answer with a calculator.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Length of the garden bed (L) = 8 feet

Width of the garden bed (W) = 4 feet

Height of the garden bed (H) = 1.5 feet