Gravel Calculator
Estimate gravel volume in cubic yards and tons
Estimate how much gravel you need for a driveway, path, or base layer, in cubic yards and tons.
Estimate gravel for a rectangular area. Density ≈ 1.4 tons/yd³ (varies by material).
Cubic Yards
1.23
With Waste
1.36
cubic yards
Estimated Tons
1.90
How to Use This Calculator
- Enter the length and width of the area.
- Enter the depth in inches.
- Optionally add a compaction or waste percentage.
- Review the estimated cubic yards and tons.
Why Use This Calculator?
- Ordering gravel for a driveway or base.
- Comparing depths for different uses.
- Allowing extra for compaction.
Real-World Examples
A 20 × 10 ft area, 4 inches deep
That's about 2.5 cubic yards of gravel, or roughly 3.5 tons (the calculator uses 1.4 tons per yard). Adding 10% for waste brings it to about 2.7 yards and 3.8 tons.
Frequently Asked Questions
How deep should gravel be?
It depends on use. A driveway base is often 4–6 inches compacted; a decorative path may need less. Compacted layers settle, so order extra.
Why is the tonnage different from the volume?
Gravel is sold by volume (yards) or weight (tons). Density varies by stone type, but the calculator uses a rough 1.4 tons per cubic yard for loose gravel.
Do I need a geotextile fabric under the gravel?
For driveways and heavy-use areas, fabric helps stop gravel from sinking into soft soil. It's a common best practice but not reflected in this volume estimate.
Important Disclaimer
Estimates based on typical gravel density. Actual weight and volume vary by stone type, moisture, and compaction. Verify before ordering materials.
Privacy
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