Construction materials calculators
Size the job. Order the right amount.
Stop guessing how much gravel, soil, or stone you need. Enter your area and depth — get cubic yards, tons, and bags in a second, with the math shown.
Calculators
19 live · more shipping- GravelCalculate
- Crushed StoneCalculate
- AggregateCalculate
- SandCalculate
- TopsoilCalculate
- Fill DirtCalculate
- MulchCalculate
- DeckCalculate
- Deck BoardCalculate
- DeckingCalculate
- Retaining WallCalculate
- Gravel DrivewayCalculate
- PaverCalculate
- Concrete BlockCalculate
- Concrete SlabCalculate
- Concrete FootingCalculate
- Concrete ColumnCalculate
- Concrete WallCalculate
- Concrete StairsCalculate
How it works
- 01
Measure
Enter your length, width, and depth — pick a shape if it’s not a rectangle.
- 02
Read the amount
See cubic yards, tons, and bags instantly, with a recommended overage.
- 03
Order with confidence
The formula and density are shown, so you can trust and defend the number.
Guides
All guides →How Many Bags of Concrete Are in a Yard?
How many 40, 60, and 80-lb bags of concrete make a cubic yard, why ready-mix wins past half a yard, and a quick reference table — plus free concrete calculators.
Read →How Many Concrete Blocks Do I Need for a Wall?
Work out how many concrete blocks (CMU) a wall needs from its area, plus the mortar and optional grout — with a worked example and a free block calculator.
Read →How Much Concrete Do I Need for a Slab?
How much concrete a slab needs — cubic yards and bag counts, the right thickness, bags vs ready-mix, and a worked example — plus a free concrete slab calculator.
Read →