Garden Bed Calculator

A raised garden bed soil calculator determines how much soil or compost to order. Most vegetables need at least 20–30 cm of quality soil depth for healthy root development

The calculator uses the standard published formula for raised garden bed soil. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with centimetres, inches, percentages, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Volume = Length × Width × Depth (all metres). Each step in the calculation is shown so you can verify the result manually.