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Ubify Financial Advisory Board
FINANCIAL ANALYSTS & CPA REVIEWERS
About This Tool
The Gravel, Aggregate & Crushed Stone Calculator determines required bulk material volume in cubic yards and weight in US tons for driveways, drainage trenches, and paths.
### Aggregate Sizing Equations & Bulk Density The calculation balances physical trench or driveway dimensions against standard rock density: - **Volume in Cubic Feet**: $$\text{Volume (cu ft)} = \text{Length} \times \text{Width} \times \left( \frac{\text{Depth (inches)}}{12} \right)$$ - **Volume in Cubic Yards**: $$\text{Cubic Yards} = \frac{\text{Volume (cu ft)}}{27}$$ - **Weight in US Tons (1.4 tons/yd³)**: $$\text{Tons} = \text{Cubic Yards} \times 1.4$$
### Practical Takeoff Example A 50-foot by 10-foot driveway with a 4-inch layer of crushed stone: - **Net Volume**: $50 \times 10 \times (4 / 12) = 166.7\text{ cu ft} \approx 6.17\text{ cubic yards}$. - **Total Tonnage**: $6.17 \times 1.4 \approx 8.64\text{ US tons}$. - **Packaged Quantity**: $8.64 \times 40 = 346\text{ bags}$ (50 lbs each).
### In-Browser Processing & Privacy All aggregate calculations execute locally in your web browser. No property dimensions or material estimates are sent to remote servers.
How to Use
- 1
Enter the project area length in feet.
- 2
Enter the project area width in feet.
- 3
Specify the gravel layer depth in inches.
- 4
Review total cubic feet, cubic yards, and required tonnage.
Frequently Asked Questions
How many tons of gravel fit in a standard dump truck?
A standard tandem-axle dump truck typically hauls 12 to 14 tons of gravel, while a smaller single-axle truck holds approximately 5 to 7 tons.
Are project dimensions uploaded to any server?
No. All calculations run strictly in client-side browser JavaScript.