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Calculator 02 / Gravel & Aggregate

Gravel Calculator

Estimate tons of gravel, crushed stone, sand, or topsoil for a driveway, base course, or fill area.

Density is approximate — actual weight varies with moisture and source material.

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How this calculator works

Gravel and aggregate are sold by weight (tons), but you measure the job by volume. This tool converts your area and depth to cubic yards, then applies the material's density to get tons.

Volume (ft³) = Length (ft) × Width (ft) × (Depth (in) ÷ 12) Cubic yards = Volume (ft³) ÷ 27 Weight (lb) = Volume (ft³) × Density (lb/ft³) × (1 + Waste %) Tons = Weight (lb) ÷ 2000
How deep should a gravel driveway base be?

A common base course is 4–6 inches of compacted gravel; heavier vehicle traffic or soft subgrade may call for 8+ inches, often in two compacted lifts.

Why does the same volume weigh differently depending on material?

Density varies by rock type, particle size, and moisture content. Always confirm density with your supplier's spec sheet for the exact product you're ordering.

Estimates only. Suppliers typically sell in fixed ton increments — confirm exact yardage and delivery minimums before ordering.