Gravel Driveway Calculator › 16×40 driveway

Gravel for a 16×40 Driveway at 4 inches

A 16×40 driveway (640 sq ft) at 4 inches needs about 7.9 cubic yards of gravel — roughly $498. See the full breakdown.

You need
7.9 cu yd
Estimated material cost $498
Area
640 sq ft
Volume
213.33 cu ft
Weight
11.06 tons
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Adjust for your project

You need
7.9 cu yd
Estimated material cost $498
Area
640 sq ft
Volume
213.33 cu ft
Weight
11.06 tons

Material shopping list

  • Order about 7.9 cubic yards of gravel.
  • Budget about $498 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.