Gravel Calculator
For driveways, slab bases, and pads: dimensions in, cubic yards and tons out — because the quarry sells in tons, not wheelbarrows.
Coverage cheat sheet (per ton)
| Depth | Coverage per ton |
|---|---|
| 2" | ~100 sq ft |
| 3" | ~65 sq ft |
| 4" | ~50 sq ft |
| 6" | ~33 sq ft |
Tons per yard varies by material: clean crushed stone ~1.4, crusher run/road base ~1.5 (fines pack denser), pea gravel ~1.3. Your supplier's number beats this table.
Common questions
How much gravel do I need for a driveway?
Length × width × depth (in feet) ÷ 27 = cubic yards, then multiply by about 1.4 to convert to tons of crushed stone. A 12×50 ft driveway at 4" deep needs roughly 7.4 cubic yards — about 10.4 tons.
How deep should driveway gravel be?
A new gravel driveway wants 8–12 inches total, built in compacted layers: 4" of large base stone (#2/#3), 4" of medium (#57), and 2–4" of crusher run or #411 on top. Topping up an existing driveway usually takes 2–3 inches.
How many tons is a yard of gravel?
Crushed stone runs about 1.4 tons per cubic yard (range 1.2–1.5 depending on stone type and moisture). Suppliers sell by the ton — always order in their unit.
How much area does a ton of gravel cover?
At 2 inches deep, one ton of crushed stone covers roughly 100 square feet. At 4 inches, about 50 square feet.