Garden Bed Soil Calculator
Calculate soil, compost, and amendment quantities needed for new garden beds or soil improvement projects
About this calculator
The Garden Bed Soil Calculator helps gardeners determine the exact quantities of soil, compost, and amendments needed for creating new garden beds or improving existing soil. This tool eliminates guesswork and prevents costly over-purchasing or under-ordering of materials. By inputting your garden bed dimensions and desired soil depth, you'll get precise calculations for topsoil, compost, and soil amendments, ensuring optimal growing conditions for your plants while staying within budget.
How to use
Enter your garden bed's length, width, and desired soil depth in feet or inches. Select the type of amendments you want to add, such as compost or organic matter. The calculator will instantly provide the cubic yards or bags of soil, compost, and amendments needed for your project.
Frequently asked questions
How deep should soil be for vegetable gardens?
Most vegetables need 6-12 inches of quality soil, with root vegetables like carrots requiring deeper beds up to 18 inches for optimal growth.
What's the difference between topsoil and compost?
Topsoil provides the base growing medium, while compost adds nutrients and improves soil structure. A 70/30 topsoil to compost ratio works well for most gardens.
How much does a cubic yard of soil weigh?
A cubic yard of soil typically weighs 1,000-1,500 pounds depending on moisture content and soil type, affecting delivery and spreading considerations.