Construction Calculator - Driveway and Sitework

Gravel Driveway Calculator

Calculate gravel tons and cubic yards for residential driveways.

Reviewed: August 26, 2026

Calculate Gravel Driveway

For the Gravel Driveway Calculator, enter length, width, depth, waste allowance, material density, and material price. It multiplies length, width, and installed depth, converts to cubic yards, applies allowance once, and converts volume to tons through the entered bulk density.

Gravel, river rock and sand arranged with measuring and installation tools

Formula used

Cubic yards = [length × width × (depth ÷ 12) ÷ 27] × (1 + waste ÷ 100); tons = cubic yards × density

Gravel Driveway Calculator measurement plan showing Length feet, Width feet, Depth inches

Worked gravel driveway example

Gravel Driveway Calculator example: 29.1 ft × 12.9 ft × (4 in ÷ 12) ÷ 27 = 4.63 yd³ before allowance. After 10% allowance, the order basis is 5.1 yd³, or 7.14 short tons at 1.4 tons/yd³.

Volume, density, and supplier units

Order from the tonnage or cubic-yard result used by the local quarry, after replacing the default density with that supplier's value.

Field conditions that change tonnage

Ruts, crown, shoulders, soft subgrade, compaction, and angular versus rounded aggregate change the real delivered quantity.

Questions specific to this calculation

Which bulk density belongs in the gravel driveway tons estimate?

Measure the driveway by segments when width or depth changes, and treat each base and surface course as a separate material layer.