Gravel Calculator — Volume, Tons, Bags & Delivery
Estimate gravel for rectangular, circular or measured areas. Compare cubic yards, tons, bags, supplier order increments and delivery costs.
Gravel for your project
2.22 cubic yards60 cubic feet · 2.68 US short tons
240 sq ft across 1 area. 0% ordering allowance.
Edit project dimensionsFirst area shown as a schematic layer; depth is exaggerated.
Add separate areas only when they do not overlap. Dimensions are examples, not recommended construction depths.
Area 1
2. Material assumptions
Density varies with material, grading and moisture. The example is 2,410 lb/yd³ for a specific supplier product. It is not a density for every gravel. If your dimensions describe a compacted layer, obtain the appropriate loose-order allowance and density from your supplier.
Where the material goes
- Area 12.22 yd³ · 100%
The bar compares measured volumes before allowance. It does not represent the areas' positions.
3. Compare your purchase options
Enter supplier quotes to compare costs. No prices are assumed. Taxes, spreading and equipment are excluded unless included in your quote.
Bulk delivery
Order quantity2.22 yd³
Estimated deliveriesEnter capacity
Total quoted costEnter price
Bagged material
Whole bags to buy120 bags
Extra after bag rounding0 ft³
Bag material costEnter bag price
How much gravel do I need?
For a rectangle, multiply length × width × depth, with all dimensions in the same unit. For a circle, use π × (diameter ÷ 2)² × depth. If you already know the area, multiply it by depth. Add non-overlapping sections, then apply your chosen allowance.
Example: 20 ft × 12 ft × (3 ÷ 12) ft = 60 ft³. Divide by 27 to get 2.222… yd³. At the labelled example density of 2,410 lb/yd³, that is about 5,356 lb, or 2.68 US short tons. Your material may have a different density.
From volume to a purchase order
Estimated mass = ordered volume × bulk density. A US short ton is 2,000 lb; a metric tonne is 1,000 kg. Bulk minimums and increments may increase the actual order. Bag count is rounded up only after dividing the required volume or mass by the bag's stated content.
The calculator keeps the measured layer, allowance and purchase rounding separate. A percentage allowance is an explicit ordering assumption, not a geotechnical compaction model. Confirm suitable depth, grading, density and delivery limits for your project.
Questions about gravel estimates
Can I calculate several areas together?
Yes. Add rectangles, circles or known areas with their own depths. Avoid overlapping areas and use the same material density for the combined order. Calculate different materials separately.
Can I use this without knowing the density?
Yes. Leave density blank to calculate volume, volume-labelled bags and volume-priced bulk orders. Mass-labelled purchases need your material's bulk density.
Does the estimate include compaction?
Only the allowance you enter. There is no universal percentage for every gravel or project. Ask your supplier how to convert your specified finished layer to an order.
Are delivery and taxes included?
Delivery is included only when you supply a per-load fee and load capacity. Taxes, spreading and equipment are excluded unless included in your entered quote. Bag cost excludes separate delivery.
Sources and related planning tools
Building a paved patio or path over an aggregate base? Use the paver calculator to compare straight layouts, count cut stones and plan the extended base, bedding and paving packs. Return here for aggregate mass, bag sizes and delivery quotes using your supplier’s density.
Filling planting beds beside the gravel area? Use the soil calculator to subtract existing soil and compare volume-labelled bags with bulk delivery. Keep the soil and aggregate orders separate.
Planning a deck beside your gravel path or patio? Use the deck board calculator for the separate deck surface. Compare board direction, stock lengths and cut patterns before ordering; gravel volume does not determine decking or framing quantities.
Vulcan Materials aggregate estimator illustrates the use of dimensions and bulk density. Gravelshop's product-specific example supplies the clearly labelled density used here.
For different tasks, use the French drain calculator, retaining wall calculator or concrete calculator. This page estimates gravel quantity and purchasing options; it does not design drainage or structural layers.
