Aggregate Calculator
Enter the area and depth of your aggregate layer. The calculator returns the volume in cubic yards and converts it to tons (construction aggregate averages about 1.4 tons per cubic yard) so you can order by weight.
Your measurements
ft
ft
in
Aggregate needed
6.91 tons
≈ 4.94 yd³
Estimates only. Verify against your supplier's coverage figures before ordering.
Footprint
Footprint to scale
Coverage
- Surface area
- 400 ft²
The formula
Tons = (Length ft × Width ft × (Depth in ÷ 12) ÷ 27) × 1.4 tons/yd³
Example: A 40 ft × 10 ft base at 4 in deep = 4.94 yd³ ≈ 6.9 tons of aggregate.
How it works
- 1Calculate the volume in cubic yards (area × depth ÷ 27).
- 2Multiply by ~1.4 to convert cubic yards to tons for aggregate.
- 3Suppliers usually sell by the ton, so order by weight.
Frequently asked questions
How many tons of aggregate are in a cubic yard?
Most construction aggregate (gravel, crushed stone, base rock) weighs about 1.3–1.5 tons per cubic yard. We use 1.4 as a typical average — ask your supplier for the exact figure on your specific material.