Calculate how much gravel you need for driveways, pathways, and landscaping projects. Estimate cubic yards, tons, and costs with our free gravel calculator.
Calculate how much gravel you need for driveways, pathways, and landscaping projects
Typical Depths:
Coverage Guide:
1 cubic yard covers approximately 100 sq ft at 3 inches deep
Calculating the right amount of gravel for your project requires understanding volume measurements and material density. Gravel is typically ordered in cubic yards or tons, with the conversion depending on the specific type and density of the material. Most gravel types have a density between 1.4 to 1.7 tons per cubic yard.
Volume (cubic yards) = Length × Width × Depth ÷ 27
Weight (tons) = Volume × Density
Note: Depth must be in feet. Divide inches by 12 to convert to feet.
Recommended depth: 4-6 inches. Use crushed stone or #57 gravel for best compaction and drainage. Provides durable surface for vehicle traffic.
Recommended depth: 2-3 inches. Pea gravel or fine crushed stone works well. Comfortable for walking and aesthetically pleasing.
Recommended depth: 4-6 inches. Use 3/4" drainage gravel or river rock. Essential for French drains and foundation drainage.
Recommended depth: 2-4 inches. Decorative river rock or pea gravel. Provides weed control and moisture retention for garden beds.
| Gravel Type | Density (tons/yd³) | Best Uses | Size |
|---|---|---|---|
| Crushed Stone | 1.65 | Driveways, base material | 3/4" - 1.5" |
| Pea Gravel | 1.62 | Pathways, landscaping | 1/4" - 1/2" |
| River Rock | 1.60 | Decorative, drainage | 1" - 3" |
| #57 Stone | 1.68 | Driveways, concrete mix | 3/4" |
| Drainage Gravel | 1.42 | French drains, foundation | 3/4" |
| Limestone | 1.70 | Base layer, driveways | Varies |
Garden pathways, decorative landscaping, around plants and trees. Minimal compaction needed.
Walkways, patio bases, shed foundations. Regular foot traffic with occasional light equipment.
Driveways, parking areas, RV pads. Designed for vehicle weight and frequent use. May require base layer.
French drains, foundation drainage, septic systems. Depth varies based on drainage requirements and soil conditions.
Proper base preparation is crucial for longevity. Remove vegetation and topsoil, grade for drainage, and compact the subgrade. Consider landscape fabric to prevent weed growth and mixing with soil.
Gravel compacts 10-15% after installation. For driveways and high-traffic areas, order 10-15% extra to account for settling. Use a plate compactor for best results.
Install edging materials (metal, plastic, or stone) to contain gravel and prevent spreading. This is especially important for pathways and decorative applications.
Gravel is typically delivered in dump trucks. Ensure clear access to the site. Spread evenly with a rake or bobcat, working in layers for thick applications.
Project: Single-car driveway, 12 feet wide × 40 feet long × 4 inches deep
Calculation:
Order: 10 tons of #57 crushed stone (rounded up for compaction)
Project: Curved pathway, 3 feet wide × 50 feet long × 2 inches deep
Calculation:
Order: 1.5 tons of pea gravel (approximately 3,000 lbs)
Project: Drainage trench, 1 foot wide × 30 feet long × 1.5 feet deep
Calculation:
Order: 2.5 tons of 3/4" drainage gravel (rounded up for settling)
Project: Decorative area, 10 feet × 15 feet × 3 inches deep
Calculation:
Order: 2.25 tons of decorative river rock