Gravel Driveway Calculator
Estimates the gravel needed for a rectangular driveway from its length and width in feet and the gravel depth in inches, giving the volume in cubic yards and an approximate weight in tons.
What this calculator does
The Gravel Driveway Calculator estimates your result instantly from the values you enter, using standard construction & home formulas. Estimates the gravel needed for a rectangular driveway from its length and width in feet and the gravel depth in inches, giving the volume in cubic yards and an approximate weight in tons. Calculations run in your browser, so nothing you type is sent to a server, and the output is an estimate rather than a certified or official figure.
Result
About Gravel Driveway Calculator
This gravel driveway calculator estimates how much gravel a rectangular driveway needs. It multiplies length by width by depth — converting the depth from inches to feet — and divides by 27 to get cubic yards. It then multiplies the cubic yards by 1.4 to give a rough weight in tons.
The 1.4 tons-per-cubic-yard factor is an approximation; actual weight varies with the stone type and how much moisture it holds.
Formula & Mathematical Calculation
Gravel Needed (yd³) = f(Length (ft), Width (ft), Depth (in))
Calculated according to standard construction formulas implemented in the calculator core.
Calculation Example
For a driveway 40 ft long, 10 ft wide, at 4 in deep:
- Cubic yards = 40 × 10 × (4 ÷ 12) ÷ 27 ≈ 4.94 yd³
- Approximate tons = 4.94 × 1.4 ≈ 6.91 tons
Key Benefits
- Reports gravel in cubic yards for ordering and an approximate tonnage for weight-based pricing
- Converts gravel depth in inches to feet for you
- Uses a simple length-by-width-by-depth volume, easy to double-check
- Helps size a bulk gravel delivery before you call a supplier
How to Use this Calculator
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Enter the length
Type the driveway length in feet into the Length (ft) field, for example 40. -
Enter the width
Type the driveway width in feet into the Width (ft) field, for example 10. -
Enter the depth
Type the gravel depth in inches into the Depth (in) field, for example 4. -
Calculate
Press Calculate to see the gravel needed in cubic yards and the approximate tons.
Assumptions & Limitations
What the calculation assumes
- Every value you enter is treated as an exact, known amount.
- Any rate or interval you enter is assumed to hold for the whole period unless the form asks for it separately.
- Results use standard published formulas and account only for the values entered above.
- Rounding is applied for display; the underlying calculation uses your full precision.
- Results are returned in the same units you enter, unless the tool states the output unit.
What it does not cover
- Gravel Driveway Calculator produces a calculated result for reference and learning, not a certified or official measurement.
- Real-world outcomes differ when tolerances, rounding rules or local standards apply.
- Definitions and standards vary by region and change over time; verify the convention that applies to your case.
- Figures are only as accurate as the inputs you supply — check them before acting on the result.
- For work where the result carries real consequences, confirm it against an authoritative source.
Frequently Asked Questions
Free to use, no account needed. Calculations run in your browser, so nothing you type is sent to a server. Results are estimates — how we build and check our calculators.