Tool
Gravel Calculator
Estimate gravel volume in cubic yards and approximate weight in tons.
Construction Calculators
What this tool does
Estimate gravel volume for driveways, pathways, and base layers. Shows cubic yards and an approximate tonnage for delivery planning.
How to use
- Enter area length and width in feet.
- Enter gravel depth in inches.
- Review cubic yards and approximate tons before ordering.
Examples
30x10 driveway section at 4 inches
Input: Length: 30 ft, Width: 10 ft, Depth: 4 in
Output: Gravel estimate: 3.70 cubic yards (~5.18 tons)
100 sq ft × 4/12 ft = 33.33 cu ft ÷ 27 = 3.70 cu yd; tons use ~1.4 factor.
Assumptions
- Area is rectangular with depth entered in inches.
- Tonnage uses an approximate factor of 1.4 tons per cubic yard.
- Actual density varies by aggregate type, size, and moisture content.
Common use cases
- Estimate gravel for driveway base layers
- Plan pathway and patio sub-base material
- Compare delivery quantities in yards versus tons
FAQ
How accurate is the ton estimate?
Tonnage varies by stone type and moisture. Use it for planning, then confirm with your supplier.
What depth is typical for driveways?
Many base layers use 4–6 inches depending on soil and traffic.
Should I compact in lifts?
Yes. Large depths should be installed and compacted in layers for stability.
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Last reviewed: 2026-05-23