Mulch calculator
Find bags and bulk volume for beds from the size, depth, and bag you type.
Result
Mulch calculator
- Units (required)
- Feet and inches
Bags
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Enter the depth, the bag size, and at least one bed.
Ballpark estimate, check before you buy or quote.
1 foot = 0.3048 metres exactly (international yard and pound agreement, 1 July 1959). Verify with your local code or a professional.
Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.
How this works and common questions
About this tool
Each bed is length times width times depth. Bags use the bag size you type and round up. Cubic yards are cubic feet divided by 27.
How it works
Each bed is length times width times depth. The beds are added. Waste increases that volume, then bags are the volume divided by the bag size you type, rounded up. Cubic yards are cubic feet divided by 27.
Rules
You type the bag size. The page does not assume a brand. Verify with your local code or a professional. Ballpark estimate, check before you buy or quote.
Questions
How is the volume found?
Length times width times depth, for every bed, then added.
How many bags?
The volume with your waste percent, divided by the bag size you type, rounded up.
What are cubic yards?
Cubic feet divided by 27, shown to 3 decimal places, half up. A 10 by 4 foot bed at 3 inches is 10 cubic feet, 0.370 cubic yards, and 5 bags of 2 cubic feet.
Do I need an account?
No. The tools work without one. You only need to sign in to save your work.
Is what I type saved?
No. Nothing is saved unless you sign in and choose Save. Otherwise it stays on the page.
Do you show ads or sell my information?
No. We show no ads and we do not sell your information.
Is this tax or legal advice?
No. Results are estimates for planning. Check rates and rules with the official source or a qualified professional.
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Estimate for planning only. This is not tax, legal, accounting or financial advice. Results depend on the figures you enter. Check all numbers, rates and rules with the official source or a qualified professional before relying on them.