Gravel Calculator
Calculate how much gravel you need in cubic yards and tons. Enter driveway or path dimensions and depth to get the amount to order.
Last updated 2026-08-21
What Is a Gravel Calculator?
The gravel calculator estimates how much gravel you need for a driveway, path, or patio base. You enter the length, width, and depth, and it returns the volume in cubic yards and the approximate weight in tons so you know what to order.
How It Works
Volume = Length × Width × (Depth ÷ 12). Weight ≈ Cubic yards × 1.4 tons.
Example
A 10 ft × 10 ft path at 3 in deep: 25 cu ft ≈ 0.93 cu yd → ~1.3 tons of gravel.
How to Calculate
- Measure the length and width of the area in feet. A 10 ft by 10 ft path is 100 sq ft.
- Set the depth. Plan on 3 to 4 in for paths and patios, and a thicker base for driveways.
- Enter the dimensions. At 10 ft by 10 ft and 3 in deep, the volume is 25 cu ft, about 0.93 cubic yards.
- Read the tonnage. At roughly 1.4 tons per cubic yard, that works out to about 1.3 tons of gravel.
- Order 5 to 10% extra to account for compaction and spreading, then lay landscape fabric before installing.
Gravel Weight per Cubic Yard
| Material | Tons per Cubic Yard | Coverage at 3 in (sq ft per ton) |
|---|---|---|
| Crushed stone | 1.4 tons | 57 sq ft |
| Pea gravel | 1.3 tons | 62 sq ft |
| River rock | 1.5 tons | 53 sq ft |
| Paver base (class 5) | 1.4 tons | 57 sq ft |
| Loose gravel | 1.25 tons | 64 sq ft |
Sources
Frequently Asked Questions
How deep should gravel be?
3–4 in for paths and patios, plus a base layer for driveways that see vehicles.
How much does gravel weigh?
About 1.4 tons per cubic yard, though it varies with stone type and moisture.
Is gravel sold by weight or volume?
Bulk suppliers sell by the cubic yard; some quote tons. Both are covered here.
Estimate the cost with the Landscaping Cost Calculator or browse Landscaping Calculators