How deep should gravel be for a driveway?

4–6 inches is standard for driveways. Use 4 inches for light vehicle traffic and 6 inches for heavier loads.

How deep for a garden path?

2–3 inches is sufficient for foot traffic paths. This provides good coverage and drainage without excessive material.

How many tons of gravel do I need?

The calculator estimates tons based on an average gravel density of 1.4 tons per cubic yard. Actual weight varies by gravel type.

What size gravel should I use?

3/4 inch crushed stone is most versatile. Pea gravel (3/8 inch) is better for paths. Larger stone (1.5 inch) is better for drainage.

How many 50 lb bags equal a cubic yard?

Approximately 54 bags of 50 lb gravel equal one cubic yard. The calculator shows an estimate based on roughly 1 cubic foot per 50 lb bag.

Everyday

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Gravel Calculator - Tons Cubic Yards Needed for Area

Calculate how much gravel you need for driveways, paths, or drainage. Get cubic yards, cubic feet, estimated weight in tons, and bag count.

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How to use this calculator

👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉

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In plain English — what does this do?

📏 Some countries say ‘30 degrees’ and others say ‘86 degrees’ for the same weather! Some say ‘5 km’, others say ‘3 miles’. This tool swaps between them instantly so you always know what it means.

📌 Direct Answer & Summary

A gravel calculator estimates how much gravel you need for landscaping, driveways, paths, or drainage projects. It converts your area and depth into cubic yards, cubic feet, weight in tons, and the number of bags needed.

Length (ft)

Width (ft)

Depth (inches)

Coverage Type

What is Gravel Calculator - Tons Cubic Yards Needed for Area?

How to use it

1️⃣ Enter the length and width of the area in feet.
2️⃣ Enter the desired depth in inches.
3️⃣ Select the coverage type to help estimate usage.
4️⃣ Click Calculate to get your material estimates.
5️⃣ Order 10–15% extra to account for settling and uneven ground.

Formula

Cubic yards = (Length × Width × Depth in inches) / 324. Weight in tons = cubic yards × 1.4 (average gravel density). Bags = cubic feet / 1 (approx. 1 cu ft per 50 lb bag).

💡 See it in action — a real example

A 20 ft × 10 ft driveway at 4 inches deep: (20 × 10 × 4) / 324 = 2.47 cubic yards. Weight: 2.47 × 1.4 = 3.45 tons.

❓ Common questions

How deep should gravel be for a driveway?: 4–6 inches is standard for driveways. Use 4 inches for light vehicle traffic and 6 inches for heavier loads.
How deep for a garden path?: 2–3 inches is sufficient for foot traffic paths. This provides good coverage and drainage without excessive material.
How many tons of gravel do I need?: The calculator estimates tons based on an average gravel density of 1.4 tons per cubic yard. Actual weight varies by gravel type.
What size gravel should I use?: 3/4 inch crushed stone is most versatile. Pea gravel (3/8 inch) is better for paths. Larger stone (1.5 inch) is better for drainage.
How many 50 lb bags equal a cubic yard?: Approximately 54 bags of 50 lb gravel equal one cubic yard. The calculator shows an estimate based on roughly 1 cubic foot per 50 lb bag.

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