Mulch calculator.
Buy with a plan.
A fresh start for your flower beds. Get cubic yards, bag counts, and a comparison based on your local prices.
Your next project starts here.
Measure your space. We’ll do the math.
Your space
02 Compare your local prices
Optional. Enter supplier quotes in USD. No store prices are prefilled.
Tax applies to materials only. Delivery is untaxed in this estimate; local rules may differ.
For wood mulch, 2–3 inches is a common starting point. Account for existing mulch and keep it away from trunks.A few helpful field notes
How much mulch do I need?
Measure each bed and enter the depth of new mulch you plan to add. Calculate cubic yards, round up to full bags, then compare your own local bag and bulk prices.
Bags = round up (area × depth ÷ 12 ÷ bag volume)
For a refresh, enter only the new layer you need. If you want 3 inches total and already have 2 usable inches, calculate an additional 1 inch.
Example mulch quantities
At 3 inches deep, before extra material. Bag volume: 2 cu ft.
| Area (sq ft) | Cubic yards | Whole bags |
|---|---|---|
| 100 | 0.93 | 13 |
| 200 | 1.85 | 25 |
| 500 | 4.63 | 63 |
Volume is displayed to two decimals. Bag counts use the unrounded volume. Bulk purchase increments may increase the quantity ordered.
Before you order
How do I convert volume to bags?
A 2 cu ft bag covers 8 square feet at 3 inches deep, before an allowance. A cubic yard contains 27 cubic feet, so it takes 14 whole 2 cu ft bags to buy at least one cubic yard.
Is bulk always cheaper?
No. Minimum orders, delivery charges, purchase increments and bag discounts can change the total. Enter both quotes above to compare the entire order.
Can I measure in meters?
Yes. Metric mode accepts meters for lengths and centimeters for depth. Switching units converts your measurements and preserves the estimated volume.
What does extra material cover?
The editable allowance increases volume for uneven surfaces and handling losses. The 10% initial value is a planning example; set it to suit your site and supplier.