Gravel Calculator

Use it when your task matches one of these common needs: Estimate gravel for a path, pad, or driveway section. Convert cubic feet into cubic yards. It works best when you already know length, width, depth in inches, tons per cubic yard, and optional bag size.

In plain language: The calculator uses cubic feet = length x width x depth inches / 12, cubic yards = cubic feet / 27, estimated tons = cubic yards x tons per cubic yard, and bag count = ceiling(cubic feet / bag cubic feet) when bag sizing is available. The examples on the page are there so you can compare your inputs with a gravel material example before copying the answer.

Length, width, and depth: the rectangular gravel area and average finished depth. Tons per cubic yard: the supplier density used to turn volume into weight. Use the yard or quarry number when you have it. Cubic yards result: the bulk volume number many landscape suppliers use for gravel, stone, and base material. Tons result: the weight estimate. It is not interchangeable with yards unless the density matches.

Read the headline estimate first, then check the material, waste, coverage, and unit lines. For project tools, the supporting lines are often the difference between a rough idea and a list you can actually shop from.

This is a rectangular planning estimate. Real orders can change with stone type, moisture, compaction, loose versus compacted volume, driveway layers, drainage, edging, fabric, supplier density, truck access, delivery minimums, and local site conditions. Also check whether your supplier sells by cubic yard, by ton, or by bag, and ask how compaction, moisture, and delivery minimums affect the final order.

Multiply length by width by depth in feet to get cubic feet, then divide by 27. If depth is in inches, divide the depth by 12 first. The calculator does that conversion for you.

No. Cubic yards measure volume, while tons measure weight. One cubic yard of common crushed stone is often around 1.35 to 1.5 tons, but the right number depends on the material and supplier.

Use the finished depth you want. Decorative beds may be around 2 inches, paths often use about 2 to 3 inches, and driveways or base layers can need more. Match the depth to the job, not just the cheapest order.

Often yes for crushed or base gravel. Loose gravel can settle or compact after spreading, so ask the supplier how much extra to order for the material and equipment you are using.

Yes for rough volume. For tons, change the tons-per-cubic-yard input because pea gravel, crushed stone, river rock, road base, and wet gravel can weigh different amounts.

No. It estimates one rectangular layer at one depth. A full driveway may need separate base, middle, and surface layers, each with its own material, depth, compaction, and drainage plan.

Ask whether they sell by the yard, ton, or bag; what density they use; the minimum delivery amount; dump-truck access needs; and whether they recommend an overage for compaction or spillage.

No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.