Calculate driveway base and surface layers separately.
My gravel project
1 area · 2 material layers
Estimated volume to order
3.89yd³
Includes 5% extra. Before supplier rounding.
Total area
200.00 ft²
Approximate weight
5.24 US short tons
Measured volume
3.70 yd³
Quantities by area and layer
Measured and order quantities
Area / material
Measured volume
Order volume
Weight
Main areaBase layer · General gravel 200.00 ft² · 4 in 1600 kg/m³ assumed density
2.469 yd³
2.593 yd³
3.496 US short ton
Main areaSurface layer · Pea gravel 200.00 ft² · 2 in 1600 kg/m³ assumed density
1.235 yd³
1.296 yd³
1.748 US short ton
Main area · Base layer
General gravel · 4 in · 1600 kg/m³
Area
200.00 ft²
Measured volume
2.469 yd³
Order volume
2.593 yd³
Approximate weight
3.496 US short ton
Main area · Surface layer
Pea gravel · 2 in · 1600 kg/m³
Area
200.00 ft²
Measured volume
1.235 yd³
Order volume
1.296 yd³
Approximate weight
1.748 US short ton
Material totals
General gravel at 1600 kg/m³: 2.593 yd³ / 3.496 US short ton
Pea gravel at 1600 kg/m³: 1.296 yd³ / 1.748 US short ton
No supplier price has been supplied. Open Estimate purchasing cost to compare your bag and bulk quotes.
Independent calculator sections are added together. Confirm no footprint overlap. Density, delivery and material suitability need supplier confirmation. This is a planning worksheet, not an order placed.
Prepared . Print or export a copy before ordering.
How do you calculate a layered driveway?
Calculate area once, then multiply it by each layer’s thickness separately. For a 20 × 10 ft example, a 4 in base needs 2.4691 yd³ and a 2 in surface needs 1.2346 yd³ before extras. With 5% extra, those become 2.5926 and 1.2963 yd³. The example layers are not a structural specification.
Keep the base and surface materials separate
Enter a supplier density and price for each layer. Two materials can occupy the same footprint at different depths without being double-counted, but two named sections should cover different horizontal areas. Add a side turnout as a separate section only after checking the boundary.
Confirm depth, drainage and subgrade locally
Gravel thickness depends on the site and intended loading. This quantity tool does not design pavement or certify subgrade, drainage, slope or compaction. Ask a qualified local professional to specify a build-up for your site; then use those thicknesses here.
