Mulch Calculator
Enter the bed size and mulch depth to see how many cubic yards or 2-cubic-foot bags you need, and what the mulch costs by the yard or by the bag.
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Estimated cost
$83 – $125
Typical figure around $104.
- Bed area
- 300 sq ft
- Mulch volume
- 2.8 cu yd
- Bag equivalent
- 38 bags (2 cu ft)
A 3-inch layer suppresses weeds and holds moisture. Bulk delivery is cheaper once you need more than about 2 cubic yards.
Planning estimate only — confirm quantities with your supplier or contractor before ordering.
How this estimate is calculated
The estimate is built from bed length (ft), bed width (ft), depth (in) and buying, then priced at national average rates. It reports bed area, mulch volume and bag equivalent, with quantities rounded up so you are never short of material and the standard waste allowance already included where it applies.
A 3-inch layer suppresses weeds and holds moisture. Bulk delivery is cheaper once you need more than about 2 cubic yards.
The dollar range is a national average, so treat it as a starting point rather than a bid. Labor rates, permit fees and material delivery differ by region — the state table below shows how your state compares, and construction cost by state breaks the picture down further.
Prefer the longer version? Read our guide to How much does a fence cost to install.
Cost by buying
Each row prices the same default job shown in the calculator above, changing only the buying. Use it to see what the upgrade or the cheaper option really costs before you commit.
| Buying | Low | High |
|---|---|---|
| Bulk (per cubic yard) | $83 | $125 |
| Bagged (2 cu ft) | $152 | $247 |
What the same job costs by state
Every row applies that state's construction cost index to the national range calculated above. The index bundles local labor rates, permit fees and material delivery, so it is a planning figure rather than a bid.
| State | Index | Low | High |
|---|---|---|---|
| Ohio | 0.92 | $77 | $115 |
| Texas | 0.93 | $78 | $116 |
| North Carolina | 0.94 | $78 | $118 |
| Georgia | 0.95 | $79 | $119 |
| Arizona | 1.01 | $84 | $126 |
| Florida | 1.02 | $85 | $128 |
| Pennsylvania | 1.03 | $86 | $129 |
| Illinois | 1.05 | $88 | $131 |
| Colorado | 1.08 | $90 | $135 |
| Washington | 1.15 | $96 | $144 |
| California | 1.32 | $110 | $165 |
| New York | 1.42 | $118 | $178 |
Index 1.00 is the national average. See construction cost by state for metro-level figures and the projects homeowners ask about most.
Where to buy materials
Links to suppliers are sponsored: if you buy through them, we may earn a commission at no extra cost to you. It never affects an estimate.
- Search The Home Depot“bagged mulch”
- Search Lowe's“bagged mulch”
Frequently asked questions
How much does a cubic yard of mulch cover?
One cubic yard covers 108 square feet at a 3-inch depth, or 162 square feet at 2 inches. Most garden beds need a 2 to 3 inch layer, refreshed once a year.
Is bulk mulch cheaper than bags?
By a wide margin once you need more than about 2 cubic yards, because you are paying for the material rather than the packaging. Below that, a few bags are easier to carry and store.
How many bags of mulch do I need?
A 2-cubic-foot bag covers about 8 square feet at a 3-inch depth. A 300 sq ft bed therefore needs roughly 38 bags, or 2.8 cubic yards in bulk — the same material without the packaging cost.
How much does mulch cost?
Bulk mulch runs $30 to $45 per cubic yard, so a 2.8 cu yd bed costs about $85 to $125 delivered. The same bed in 2-cubic-foot bags costs roughly $150 to $250, which is why bulk delivery wins once you pass about 2 cubic yards.
Does this cost change from state to state?
Yes. Applying each state's construction cost index to the national range of $83 to $125, the same job runs from about $77 to $115 in Ohio (index 0.92) to $118 to $178 in New York (index 1.42).
What is not included in this estimate?
A 3-inch layer suppresses weeds and holds moisture. Bulk delivery is cheaper once you need more than about 2 cubic yards. The figure is a national planning average for the work described above, not a contractor's quote.
