Mulch and Stone Calculator

Use this calculator to figure out how much product you need to complete your project.

For mulches and stone, the depth by which an area is covered is usually expressed in inches (or centimeters). The area to be covered is expressed in square feet (ft2) or square meters (m2). The amount of stone or mulch needed is expressed in cubic feet (ft3), cubic yards (yd3) or cubic meters (m3).

Select the type of product you wish to use.


Please choose either metric (cm/m) or imperial (inches/feet) which you have used for your measurements.


Enter the depth of the material for your space.

For mulch & pine nuggets we recommend a minimum of 3 inches (7.5cm) for new applications on bare soil, or 2 inches (5cm) if topping up on previous year's mulch.

For stone products we recommend 3 inches (7.5cm) for large diameter stones, or 2 inches (5cm) for smaller stones.


Select whether you have the dimensions or total area of your space.

Enter the dimensions for your square or rectangular area in meters.
Length (meters)
Width (meters)
Enter the radius for your circular area in meters.
Radius (meters)
Enter the total area of your space in meters2.
Area (meters2)