calcs.homes
calcs.homes
Find how much gravel or crushed stone you need for a driveway or path — this crushed stone calculator gives you yards, tons, bags, and cost.
Estimate only — bag count assumes standard 0.5 cu ft (US) or 20 kg (EU) bags.
We multiply length, width, and depth to get cubic feet, convert that to cubic yards, then multiply by the selected material's density — roughly 1.2 to 1.4 tons per cubic yard depending on stone type — to get weight in tons. Bag count divides total volume by a standard 0.5 cu ft (US) or 20 kg (EU) bag, and cost multiplies tons by your price per ton.
Density varies by stone type because angular crushed stone packs tighter with less air space than rounded pea gravel or lighter decorative stone, so using the right figure matters for an accurate tonnage. Suppliers price and sell gravel by weight rather than volume since moisture and settling can change a load's apparent volume, but its weight stays consistent.
Most driveways use a 4-6 inch gravel base. Enter your driveway's length and width with a 4-6 inch depth above for tons needed.
About 1.2 to 1.4 tons, depending on the stone type — crushed stone runs slightly heavier than pea gravel or decorative stone.