Gravel calculator

Work out exactly how much gravel, crushed stone or pea gravel to order — in cubic yards and tons — before you call the supplier.

Gravel, Soil & Mulch Volume Calculator

Calculates cubic yards, weight in tons, and estimated material cost for landscaping & driveways.

Material Type

Length (feet)

Width (feet)

Depth (inches)

Area

300 sq ft

Cubic Yards

2.78 yd³

Weight

5.3 tons

Est. Cost

$236

Pro Tip: Add 5–10% extra for uneven ground or compaction if this is for a driveway or patio base.

How it works

Multiply length × width (feet) to get the area, then multiply by depth in feet (inches ÷ 12) for cubic feet.
Divide cubic feet by 27 to get cubic yards — the unit most suppliers sell by.
Multiply by the stone's density (about 1.4 tons per cubic yard for crushed stone) to get tons.

Example: A 30 × 10 ft driveway at 3 inches deep is 75 cubic feet = 2.8 cubic yards ≈ 3.9 tons of crushed stone.

4–6 inches total for a new driveway (base plus top layer); 2–3 inches to top up an existing one.