Gravel Calculator
Cubic yards & tons of gravel for driveways and paths
Building a gravel driveway, path or drain? Enter your dimensions to get the volume in cubic yards and the weight in tons — the two ways gravel is sold.
How much gravel do I need?
Gravel coverage is area × depth. Driveways typically use 2–4 inches per layer over a thicker compacted base. We add 10% for compaction and spreading so you don't come up short on the last stretch.
Gravel: tons vs. cubic yards
Gravel is sold two ways: by volume (cubic yards) for bulk delivery, or by weight (tons). Most crushed stone weighs about 1.4 tons per cubic yard; we estimate tons using ~105 lb/ft³. As a rule of thumb, one ton covers roughly 100 ft² at 2 inches deep, or about 70 ft² at 3 inches.
Base, surface and edging
A driveway that lasts is built in layers: a coarse 3–4 inch sub-base of larger crushed stone, topped with a 1–2 inch driving surface of smaller, angular gravel that locks together. Angular crushed stone grips far better than rounded pea gravel on a slope. Edging — steel, timber or a paver border — keeps the gravel from creeping into your lawn.
Gravel Calculator: frequently asked questions
How many tons of gravel in a cubic yard?
Roughly 1.4 tons for typical crushed stone, ranging 1.2–1.5 tons by stone type and moisture.
How much area does a ton of gravel cover?
About 100 ft² at 2 inches deep, or 70 ft² at 3 inches, for typical crushed stone. Deeper layers cover less area per ton, so depth drives the weight you need.
How deep should driveway gravel be?
Usually 4–6 inches total, built up in 2-inch layers over a compacted base.
How much does a yard of gravel cost?
Bulk gravel commonly runs $15–$75 per cubic yard plus delivery, depending on the stone type and your region. Plain crusher run is cheapest; decorative stone costs more.