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
Coverage
- Surface area
- 400 ft²
- Depth
- 4 in
Aggregate needed
4.94 yd³
≈ 6.91 tons
Order this
- Weight
- 6.91 tons
- Cubic feet
- 133.33 ft³
Estimates only. Order a little extra for waste and verify against your supplier's coverage figures.
Footprint
Footprint to scale
The formula
Tons = (Length ft × Width ft × Depth ft ÷ 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.