Topsoil Calculator
Estimate the topsoil for a new lawn, raised bed or level-off. Enter the area and depth to get cubic yards and bags. Nothing is uploaded — it all runs in your browser.
You'll need
Topsoil is sold in bags for small jobs or by the cubic yard for lawns and large beds. Weight assumes ~1.3 t/m³; add a waste % for spillage.
How to use the topsoil calculator
- Measure your area Length × width for a rectangle, or the diameter for a circle.
- Set the depth How thick a layer you're laying.
- Read the result Cubic yards for bulk, tons for weight-priced material, or bags for a small job — add a waste % for spillage.
Topsoil Calculator FAQ
How much topsoil do I need?
Multiply the area by the depth of soil you want to add, then convert to cubic yards or bags. Enter your dimensions above.
How many bags of topsoil in a cubic yard?
At about 0.75 ft³ per bag it takes roughly 36 bags to make a cubic yard, so bulk delivery is cheaper for big jobs.
How deep should topsoil be?
For a new lawn, 3–6 inches; for raised beds, fill to the depth of the bed. Set the depth to your target.