What the calculator estimates
The calculator converts length, width, and depth into volume, then applies material density and waste to estimate tons, bags, and cost.
Estimate gravel before you call the supplier
Enter the area and depth, choose a material, and compare bulk tons with bag counts. Densities and prices vary, so use this as a planning estimate and confirm with your supplier.
ProjectDriveway top layer
MaterialCrushed stone
Waste factor10%
Project dimensions
For irregular areas, split the project into rectangles and add them separately.
Material and cost
Density is editable because gravel type, moisture, and compaction change real weight.
Good depth starting points
Paths often use 2-3 inches, decorative beds may use 2 inches, and driveways or bases often need deeper layers depending on the site and base preparation.
Planning note
Gravel density and coverage change by material, moisture, compaction, and supplier. Confirm density, delivery minimums, and final order quantity before purchase.
Formula used
- Convert length, width, and depth to feet.
- Cubic feet = length × width × depth.
- Cubic yards = cubic feet ÷ 27.
- Tons = cubic yards × tons per cubic yard × waste factor.
- Bags = tons × 2,000 ÷ bag size, rounded up.
How much does one cubic yard of gravel weigh?
Many common gravel products are roughly 1.2 to 1.7 tons per cubic yard. The exact weight depends on stone type, gradation, moisture, and compaction.
Should I order gravel by tons or cubic yards?
Many suppliers sell bulk gravel by the ton, while project dimensions are easier to measure in cubic yards. This calculator shows both so you can compare.
How much extra gravel should I add?
A 5-15% waste factor is common for uneven ground, compaction, spreading loss, and supplier rounding. Larger or irregular projects may need more.
Is this a contractor quote?
No. It is a planning estimate. Prices, delivery fees, taxes, minimum orders, base preparation, and site conditions vary by supplier and location.