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Gravel Calculator

Calculate gravel volume, tonnage, bags, and cost for any coverage area.

Our gravel calculator helps remove the guesswork from ordering fill, base course, or decorative stone. It converts area and depth into cubic yards and tons for any gravel type. You'll get bag counts for small jobs or bulk tonnage for deliveries on larger projects.Saving time on gravel material and cost calculations is easy with Houzz Pro’s pre-priced material Cost Catalog or by using the Clipper tool to link to your preferred vendor websites.

How to calculate gravel quantities and costs

To use our gravel calculator, input the coverage area, depth, type of gravel, and price per ton (optional), and you’ll get a breakdown that includes cubic yards, tons, 50-pound bags as an alternative, and estimated cost for the materials (if provided).The calculator supports the following gravel types, with their coverage ratios:
  • Pea gravel, 1.35 tons/cubic yard
  • Crushed stone, 1.40 tons/cubic yard
  • River rock, 1.35 tons/cubic yard
  • Decomposed granite, 1.50 tons/cubic yard
  • Crusher run, 1.50 tons/cubic yard
  • Marble chips, 1.45 tons/cubic yard
Here are some tips when ordering and installing gravel:
  • Compact gravel 1-2 inches thicker than your target depth as it settles under traffic.
  • For driveways, use crusher run as a base and top with pea or crushed stone for a cleaner finish.
  • Verify your supplier's minimum delivery before ordering. Most bulk suppliers require an order of at least 3-5 tons.

How much gravel do I need?

Here’s an example showing how the gravel calculator determines how much you need to cover a 50-foot x 12-foot area at a depth of 4 inches.Calculator inputs:
  • Area length and width: 50 feet x 12 feet
  • Gravel depth: 4 inches
  • Gravel type: Crushed stone
  • Price per ton: $35
Based on the inputs above, the calculator determines the cubic yards and tons of rock needed to cover the area, as well as providing the number of 50-pound bags required. It also provides the material cost based on the provided pricing. Here’s the breakdown:
  • Cubic yards: 7.41
  • Tons: 10.37
  • 50-pound bags: 415
  • Material cost: $362.96
Using Houzz Pro’s Cost Catalog and Clipper tools saves time and increases your gravel project estimate accuracy. They can also help standardize your proposals for more consistent pricing.

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