Gravel Calculator
Use this gravel calculator to estimate gravel volume, cubic yards, tons, bag counts, and optional cost for driveways, walkways, drainage areas, patio bases, and landscape paths. It helps translate a planned area and depth into common supplier units.
Length in feet
Width in feet
Depth in inches (typical: 3-4 inches)
Tons per cubic yard (typical: 1.2-1.5)
Decimal (0.9 = 90% compaction)
Leave empty to skip cost calculation
Leave empty to skip cost calculation
Typical: 10% for gravel
Cubic Feet
73.33
includes 10% waste
Cubic Yards
3.02
compacted volume
Tons
4.22
at 1.4 tons/cu yd
Pounds
8,449.93
total weight
Formula:
Tons = (L × W × D/12 ÷ 27 ÷ Compaction) × Density × (1 + Waste)
Assumptions:
- Density varies by gravel type: pea gravel ~1.4, crushed stone ~1.5
- Compaction factor accounts for settling after installation
- Typical driveway depth: 3-4 inches over compacted base
Planning estimate only
These calculations provide planning estimates. Always verify with product specifications and professional guidance before purchasing materials.
What this gravel calculator does
Use this gravel calculator to estimate gravel volume, cubic yards, tons, bag counts, and optional cost for driveways, walkways, drainage areas, patio bases, and landscape paths. It helps translate a planned area and depth into common supplier units.
Material Tally calculators are built for planning conversations with suppliers, contractors, and family members before a project starts. They help you see the difference between exact math and practical buying quantities, including waste factors and rounded purchase units. The result should be treated as a strong planning estimate, then checked against product labels, supplier guidance, and local building requirements.
Best for
- Early material planning before visiting a supplier
- Comparing cost assumptions and waste factors
- Checking whether a project is small enough for bagged or boxed materials
- Creating a clearer shopping list before work begins
How to use the calculator
Measure the length and width of the driveway, path, or base area.
Enter the installed depth in inches based on the project type and expected traffic.
Choose or enter the density for the gravel product if your supplier provides one.
Add a compaction or waste allowance to cover settling, grading, and irregular ground.
Review cubic yards, tons, and optional cost before requesting quotes or delivery.
How the math works
The calculator multiplies length by width by depth converted from inches to feet, then applies the selected waste or compaction factor. Cubic yards are calculated by dividing cubic feet by 27. Tons are estimated by multiplying volume by the selected material density, which can vary by stone type and moisture content.
Planning tips
Depth matters more than many people expect. A thin decorative layer uses far less gravel than a compacted driveway base.
Ask your supplier for the density or tons-per-yard of the exact material. Crushed stone, pea gravel, road base, and washed gravel do not weigh the same.
Plan for compaction when gravel is used as a base layer. Installed depth after compaction may be lower than loose depth before compaction.
For driveways and drainage projects, confirm base preparation, geotextile fabric, slope, and local requirements before ordering.
Frequently asked questions
Related tools and guides
Related calculators
- Concrete Calculator
Use the Material Tally concrete calculator to estimate cubic yards, concrete bags, waste factor, and project cost for slabs, footings, and post holes.
- Mulch Calculator
Estimate cubic yards, cubic feet, bags, and cost of mulch for garden beds using area, depth, waste factor, and bag size.
Related guides
- Gravel Driveway Depth and Tonnage Guide
Plan gravel driveway depth, base layers, cubic yards, tons, compaction, and delivery questions before ordering.
- Gravel vs Concrete vs Pavers for Project Planning
Compare how gravel, concrete, and pavers differ in measurement method, base prep, waste, and ordering so you can plan the right material workflow.
- Estimating Waste by Material Type
Choose better waste factors by separating breakage, cuts, spillage, compaction, and product packaging across material types.
- Material Estimate Checklist Before You Buy
Use this checklist to review measurements, waste, product specs, delivery, code issues, and supplier questions before purchasing materials.