Mulch Bags Calculator

How to estimate mulch bags

1. Measure total bed area (length x width) and pick a target depth (often 2-3 inches).
2. Convert your volume to cubic feet and divide by the bag size (cu ft per bag).
3. Round up to whole bags and consider buying a little extra for touch-ups.

Assumptions to double-check

• Bag volume is based on the label, but actual coverage can vary by product and settling.
• Depth is an average depth after spreading and raking.
• Mulch compacts after watering; a buffer helps prevent running short.

Buying tips

• Check bag size (cu ft or liters) and coverage claims on the label.
• If you're matching color, buy enough from the same batch when possible.
• Keep a few extra bags for seasonal top-ups and areas you expand later.