Gravel Calculator
Calculate how much gravel you need for driveways, walkways, patios, or drainage projects. Get estimates in cubic yards and tons.
Typical: 2-4" for walkways, 4-6" for driveways, 8-12" for base layers
Enter your project dimensions to calculate gravel needed.
How It Works
Our gravel calculator determines volume (length × width × depth in cubic yards) and converts to weight based on the gravel type. Different gravels have different densities— crushed stone is heavier than pea gravel, for example.
Gravel is typically sold by the ton for bulk orders or by the cubic yard. Knowing both measurements helps when comparing prices. Most suppliers sell by the ton since that's how they weigh their trucks.
We recommend ordering 5-10% extra to account for settling, spillage, and compaction. Gravel compacts significantly, especially crushed stone which locks together.
Frequently Asked Questions
Which gravel type should I use?
Crushed stone: Best for driveways and bases—compacts well and locks together. Pea gravel: Good for walkways and decorative areas—comfortable to walk on. River rock: Decorative, good for drainage. Decomposed granite: Firm surface for patios and paths.
How thick should gravel be for a driveway?
For vehicle traffic, plan 8-12 inches total depth: a 4-6 inch base layer of larger crushed stone (2-3 inch), a 2-3 inch middle layer of smaller stone, and a 2-3 inch top layer of fine gravel. Compact each layer before adding the next.
Do I need landscape fabric under gravel?
Yes, for most applications. Landscape fabric prevents gravel from sinking into soil and weeds from growing through. Skip it only if you want drainage (like a French drain) or are using gravel as a base under pavers or concrete.
How much does gravel delivery cost?
Delivery typically costs $50-150 depending on distance and quantity. Many suppliers offer free delivery for orders over 5-10 tons. Smaller quantities may cost more per ton. Get quotes from multiple suppliers including delivery.
Will gravel stay in place?
Crushed stone and decomposed granite compact and stay in place well. Round gravels like pea gravel and river rock tend to migrate. Edging helps contain all gravel types. On slopes, consider crushed stone or grid systems designed to hold gravel in place.