Mulch Calculator
Find how much mulch to buy for your garden beds. Enter the bed area and depth to get cubic yards and 2 ft³ bags. Nothing is uploaded — it all runs in your browser.
You'll need
Mulch is sold in 2 ft³ bags for small beds or by the cubic yard for bulk delivery. Weight assumes ~0.4 t/m³; add a waste % for spillage.
How to use the mulch 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.
Mulch Calculator FAQ
How much mulch do I need?
Multiply the bed area by the mulch depth for the volume, then convert to cubic yards or bags. Enter your dimensions above.
How many bags of mulch in a cubic yard?
A cubic yard is 27 cubic feet, so it takes about 13–14 standard 2 ft³ bags to make a cubic yard.
How deep should mulch be?
Two to three inches is typical for garden beds — enough to suppress weeds and hold moisture without smothering plants.