Density varies by gravel type — confirm exact tonnage with your supplier for precise ordering.
Free Gravel Calculator
Gravel is typically sold by the ton at quarries/suppliers, using an average density of about 1.4-1.5 tons per cubic yard for standard crushed stone — density varies somewhat by material type (crushed stone vs. river rock vs. pea gravel), so confirm with your supplier for precise pricing.
Worked Example
Example: A 300 sq ft driveway area at 4 inches deep needs 100 cubic feet = 3.7 cubic yards ≈ 5.2 tons of gravel.
Formula / Method
Cubic Yards = (Area × Depth in ft) / 27Tons ≈ Cubic Yards × 1.4 (standard crushed stone density)
Worked Example
Example: A 300 sq ft driveway area at 4 inches deep needs 100 cubic feet = 3.7 cubic yards ≈ 5.2 tons of gravel.
Formula / Method
Cubic Yards = (Area × Depth in ft) / 27Tons ≈ Cubic Yards × 1.4 (standard crushed stone density)