Gravel Calculator
Use this free gravel calculator to estimate the amount of gravel needed for driveways, paths, and landscaping. Gravel is sold by weight (tons), so our calculator includes density conversions for accurate ordering.
How to Use This Calculator
- 1
Measure your area
Enter the length and width of the area in feet.
- 2
Set the depth
Enter the desired gravel depth in inches (2–6 inches typical).
- 3
Select gravel type
Choose your gravel type — this affects weight and cost calculations.
- 4
Review results
See tons, cubic yards, bag counts, and estimated costs.
Frequently Asked Questions
A typical two-car driveway (12x20 ft) with 4 inches of gravel needs about 1 cubic yard (roughly 1.4 tons of crushed stone). Longer driveways require proportionally more. Use our calculator to get an exact estimate.
One ton of gravel covers about 80–100 sq ft at 2 inches deep, or 50–60 sq ft at 4 inches deep. Coverage varies by gravel type due to different densities.
Crushed stone (#57 or #411) is the most popular driveway gravel because it compacts well and provides good drainage. For the base layer, use #3 crushed stone, topped with a finer #57 stone.
For walkways and paths: 2–3 inches. For driveways: 4–6 inches (often in two layers). For drainage areas: 4–6 inches. For decorative landscaping: 2–3 inches.