Gravel calculator.
Buy with a plan.
A better path starts with a good plan. 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 gravel do I need?
Measure the area and the planned gravel depth. This calculator estimates volume, bag counts, and the cost of a bulk order. For suppliers quoting by weight, choose US short tons and enter their density.
Bags = round up (area × depth ÷ 12 ÷ bag volume)
Stone density, moisture and compaction change quantities. Ask your supplier about the material and required base layers; the example depth below is a calculation input, not an installation specification.
Example gravel quantities
At 2 inches deep, before extra material. Bag volume: 0.5 cu ft.
| Area (sq ft) | Cubic yards | Whole bags |
|---|---|---|
| 100 | 0.62 | 34 |
| 200 | 1.23 | 67 |
| 500 | 3.09 | 167 |
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 tons?
A US short ton is 2,000 pounds. To convert cubic yards to short tons, multiply volume by your supplier’s density in tons per cubic yard. The editable 1.4 default is only a planning assumption.
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.