Gravel Calculator
Cubic yards and tons of gravel for driveways, walkways, and pads. Updated for 2026.
Last reviewed July 2026 · Free · Nothing you enter is stored
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Planning estimate using standard formulas and 2026 national average prices — confirm quantities with your supplier and get local quotes.
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How this calculator works
Cubic yards = square footage × depth in inches ÷ 324. Tonnage uses the standard conversion of 1.4 tons per cubic yard for common crushed stone and pea gravel (denser materials like DG run slightly higher). Cost uses the national average of about $40 per cubic yard for material, with a typical range of $15–$75 depending on stone type.
Frequently asked questions
How many square feet does a yard of gravel cover?
324 sq ft at 1 inch deep, 162 sq ft at 2 inches, 108 sq ft at 3 inches, and 81 sq ft at 4 inches. Just divide 324 by your depth in inches.
How many tons is a yard of gravel?
About 1.4 tons per cubic yard for typical crushed stone or pea gravel. Suppliers sell by the yard or the ton — this calculator gives you both so you can compare quotes.
How deep should driveway gravel be?
A new gravel driveway needs 6–8 inches total, ideally built as two or three compacted layers: larger base stone (#3) at the bottom, mid-size in the middle, and a 2–3 inch top layer of smaller crushed stone (#57 or fines).
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