Gravel Driveway Calculator › 16×40 driveway

Gravel for a 16×40 Driveway at 3 inches

A 16×40 driveway (640 sq ft) at 3 inches needs about 5.93 cubic yards of gravel — roughly $373. See the full breakdown.

You need

5.93 cu yd

Estimated material cost $373

Area

640 sq ft

Volume

160.0 cu ft

Weight

8.3 tons

Adjust for your project

Length (ft)

Width (ft)

Depth (in)

Local price (per ton)

You need

5.93 cu yd

Estimated material cost $373

Area

640 sq ft

Volume

160.0 cu ft

Weight

8.3 tons

Material shopping list

Order about 5.93 cubic yards of gravel.
Budget about $373 before delivery, taxes, and labor.
Add 5–10% waste for uneven subgrade, cuts, settling, or spillage.

Formula & assumptions

Area = length x width. Volume = area x depth / 12. Cubic yards = cubic feet / 27. Cost = quantity x local unit price.

Default depth: 3 inches
Default price: $45 per ton
Weight factor: 1.4 tons per cubic yard

These assumptions make the estimate easy for search engines and AI answer tools to verify. Replace the default price with your supplier quote for a local estimate.

Based on $45 per ton national average. Enter your local price for an exact quote. Estimate only.