Gravel Calculator

Enter your area and depth, and we'll estimate the cubic yards and tons of gravel your project needs.

📖 How it works & FAQ

Length (feet)

Width (feet)

Depth (inches)

—Cubic yards

—Tons of gravelat ~1.4 ton/yd³

—Coverage areasquare feet

How much gravel do you need?

Buying gravel is easy to get wrong. Order too little and you're back at the yard mid-project; order too much and you've paid for a pile you have to move. This gravel calculator turns three simple measurements — length, width, and depth — into the two numbers suppliers actually sell by: cubic yards and tons. Gravel is priced by the cubic yard at many landscape yards and by the ton at quarries, so it helps to know both before you call around.

How the math works

First we find your coverage area by multiplying length times width in feet. Then we convert your depth from inches to feet (depth divided by 12) and multiply it in to get cubic feet. Dividing by 27 gives cubic yards, since there are 27 cubic feet in a yard. To estimate weight we multiply cubic yards by 1.4, because a cubic yard of typical dry gravel weighs roughly 1.4 tons. Wet gravel, larger stone, or crushed rock can weigh more, so treat tonnage as a working estimate rather than an exact figure.

How to use it

Measure the length and width of your area in feet.
Decide your depth in inches — 2 to 3 inches suits paths and top-ups, 4 inches or more suits driveways.
Type the three numbers in and read your cubic yards and tons instantly.
Add about 5–10% extra for spread, settling, and uneven ground.

FAQ

How deep should my gravel be?: For walkways and decorative beds, 2–3 inches is plenty. For driveways that carry vehicles, aim for 4 inches or more, often built up in layers.
Should I order in yards or tons?: Either works. Landscape supply yards usually sell by the cubic yard, while quarries often price by the ton. This tool gives you both so you can compare quotes.
Why does the calculator use 1.4 tons per cubic yard?: That's a common average for dry gravel. Actual weight varies with stone size and moisture, so use it as a close estimate, not an exact number.
Are these results guaranteed accurate?: These are estimates for planning only, not professional advice. Confirm quantities with your gravel supplier before ordering.