Landscaping Gravel Calculator
Estimate how much gravel you need for landscaping projects, driveways, walkways, patios, drainage areas, and garden beds. Enter the area, depth, gravel density, and optional price to calculate cubic yards, tons, bags, and estimated cost.
How to Use the Gravel Calculator
- Select the shape of the area: rectangle, circle, or known square footage.
- Enter the length and width, diameter, or known area.
- Enter the gravel depth.
- Adjust density, bag size, price, and waste factor if needed.
- Click calculate to estimate cubic yards, tons, bags, and cost.
Common Gravel Depths
| Project Type | Typical Depth | Notes |
|---|---|---|
| Walkway or garden path | 2–3 inches | Good for light foot traffic |
| Patio base | 3–4 inches | Depends on pavers and soil condition |
| Driveway top layer | 4–6 inches | May require a deeper base layer |
| Drainage trench | Varies | Depth depends on pipe, slope, and soil |
Gravel Estimating Tips
Smart Buying Tips
- Use cubic yards for bulk delivery and bags for small projects.
- Add a waste or compaction factor, especially for driveways and base layers.
- Confirm the supplier’s tons-per-cubic-yard estimate for the exact gravel type.
- Order slightly more if the area is uneven or hard to measure.
Common Mistakes
- Forgetting to convert inches of depth into feet.
- Using the wrong density for heavy stone or lightweight decorative gravel.
- Not accounting for compaction.
- Ordering by bags when bulk delivery would be cheaper.
Related Calculators
Gravel Calculator Guide
This gravel calculator helps estimate the amount of gravel needed for landscaping and outdoor projects. It calculates volume from the area and depth, converts cubic feet to cubic yards, applies a waste factor, and estimates tons using a gravel density value.
Most bulk gravel is sold by the ton or cubic yard. Small bagged gravel is usually sold by cubic feet. This tool gives you all three estimates so you can compare delivery options and store-bought bag quantities.
Why Gravel Density Matters
Different materials have different weights. Pea gravel, crushed stone, river rock, limestone, and decorative gravel can vary in density. A general planning estimate is about 1.3 to 1.5 tons per cubic yard, but the supplier’s number should be used before ordering.