Pea Gravel Calculator for Yards, Tons, Bags, and Cost
Estimate pea gravel for walkways, patios, drainage trenches, dog runs, play areas, and landscape beds using project dimensions, installation depth, density, waste, and pricing. This calculator gives cubic yards, cubic feet, tons, pounds, bag count, coverage, and order-planning numbers for U.S. suppliers.
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Rebar Weight Chart
US Standard Rebar Sizes (#2–#18) with weight per foot, diameter, and cross-sectional area.
View Chart →How the Calculator Figures Your Order
The first step is area. Rectangles use length × width, circles use \(\pi r^2\), triangles use base × height ÷ 2, and custom mode uses your known square footage. The calculator then multiplies area by depth in feet to get cubic feet and divides by 27 to convert to cubic yards.
Weight comes from cubic yards multiplied by selected density. Inch Calculator lists pea gravel at about 2,500 to 3,000 pounds per cubic yard, which is about 1.25 to 1.5 tons per cubic yard, so supplier density matters when you want tighter ordering accuracy [page:2].
Waste and compaction are applied after base volume so you can account for spill, uneven grade, and intentional settlement. If you need a more general aggregate estimate, use the gravel calculator or the cubic yard calculator.
Pea Gravel Numbers to Know
These lookup values help with field checks before you place an order. Coverage changes with depth, and weight changes with moisture and quarry source.
| Reference Value | Typical Number | Why It Matters |
|---|---|---|
| 1 cubic yard | 27 cubic feet | Core conversion for every landscape material order |
| Pea gravel density | 2,500 to 3,000 lb/yd³ | Converts volume to pounds and tons |
| Pea gravel density | 1.25 to 1.5 tons/yd³ | Matches bulk supplier ordering units |
| Coverage at 2 inches | About 162 sq ft per yd³ | Useful for patio and walkway planning |
| Coverage at 3 inches | About 108 sq ft per yd³ | Common decorative bed depth |
| Coverage at 4 inches | About 81 sq ft per yd³ | Useful for deeper drainage or loose-fill areas |
| Waste allowance | 5% to 10% | Helps avoid under-ordering |
Calculator.net says a minimum of 2 to 4 inches is a workable baseline for many gravel installations, and Inch Calculator’s density table lists pea gravel at 2,500 to 3,000 pounds per cubic yard [page:1][page:2]. If you are comparing rounded stone with angular aggregate, also check the crushed stone calculator, the river rock calculator, and the decorative stone calculator.
Where Pea Gravel Fits Best
Pea gravel is a small rounded aggregate used for landscaping, drainage zones, and light outdoor surfaces. Calculator.net notes that pea gravel is inexpensive, drains well, and is commonly used in landscaping, around plants, and for general construction uses [page:1].
Rounded stone looks clean and spreads easily, but it does not lock together like angular base stone. That is why pea gravel works well for beds, dog runs, utility borders, and some walkways, while drive lanes and structural bases often need a tighter compacting aggregate such as material estimated with the base material calculator or the sand calculator.
USGS reports that U.S. construction sand and gravel production was an estimated 870 million tons in 2025, with output used across concrete, road base, fill, asphalt, drainage, landscaping, and pea gravel applications [web:18]. That broad supply chain is one reason local price and density can shift by region.
Sample Ordering Scenarios
These examples show the same math your calculator result will use. Field conditions and supplier density can move the final order up or down slightly.
Walkway Refresh
Area: 30 ft × 4 ft
Depth: 3 inches
Density: 2,700 lb/yd³
Waste: 10%
Order about 1.22 yd³, 1.65 tons, or 33 bags at 1 cu ft each
Base volume is 30 × 4 × 0.25 = 30 cubic feet. Divide by 27 to get 1.11 cubic yards, then add 10% waste for 1.22 cubic yards. For total site pricing, pair this with the landscaping cost calculator.
Round Fire Pit Border
Diameter: 12 ft
Depth: 2 inches
Density: 2,500 lb/yd³
Waste: 5%
Order about 0.87 yd³ and 1.09 tons
Area is \(\pi \times 6^2 = 113.10\) square feet. Multiply by 0.1667 feet of depth to get about 18.85 cubic feet, then divide by 27 and add waste. If this sits beside a slab or hardscape edge, the concrete patio calculator may help plan adjacent work.
Drainage Strip Along Foundation
Area: 60 ft × 2.5 ft
Depth: 4 inches
Density: 3,000 lb/yd³
Waste: 10%
Order about 2.04 yd³ and 3.06 tons
This deeper section needs more material than most decorative beds because depth jumps from 2 inches to 4 inches. If excavation or grading is required first, check the site preparation cost calculator and the land clearing cost calculator.
Ordering Mistakes That Cause Short Loads
Depth errors are common. Entering 3 inches as 3 feet multiplies the order by 12, while forgetting to convert inches to feet cuts volume drastically.
Using a generic density can also mislead the tonnage. Inch Calculator’s table shows pea gravel at 2,500 to 3,000 pounds per cubic yard, so a supplier ticket outside your default assumption should update the order [page:2].
Skipping overage is another avoidable problem. Inch Calculator recommends adding 10% for overage in many cases, and compaction may require more where the stone is intentionally consolidated [page:2].
Using pea gravel as a structural base is a design error. Rounded aggregate drains well, but it is less stable under vehicle loading than angular base rock, so driveway subbase and slab support usually need a different material class.
Supply, Delivery, and Regional Pricing Factors
USGS states that construction sand and gravel had an average unit value of $14.50 per metric ton in 2025, but that is a national production statistic, not a delivered retail landscape price [web:18]. Retail pea gravel pricing is usually higher because it includes screening, local hauling, yard overhead, and smaller order quantities.
USGS also notes that Texas, California, Arizona, Minnesota, Michigan, Utah, Washington, Colorado, New York, and Wisconsin were the leading producing states, together accounting for about 54% of U.S. output in 2025 [web:18]. That matters because freight distance can move your delivered price as much as the stone itself.
For budget planning, compare material totals with the project budget calculator. If you are deciding between landscape stone categories, the landscape rock calculator and the fill dirt calculator help with alternative fills.
Pea Gravel Questions Homeowners and Contractors Ask
Pea gravel commonly falls around 2,500 to 3,000 pounds per cubic yard, which is about 1.25 to 1.5 tons per cubic yard [page:2]. Use your supplier’s stated density whenever accuracy matters for truckloading or cost [page:2].
One cubic yard is 27 cubic feet, so coverage depends on depth [page:2]. At 2 inches deep it covers about 162 square feet, at 3 inches about 108 square feet, and at 4 inches about 81 square feet, based on simple volume conversion from 27 cubic feet.
Calculator.net says 2 to 4 inches is a workable baseline for many gravel applications [page:1]. Decorative beds often stay near the lower end, while drainage strips and loose-fill areas may need deeper placement.
Bulk suppliers often quote aggregate by the ton, while some landscape yards use cubic yards and home centers use bags [page:2]. This calculator gives all three so you can compare quotes without redoing the math.
Yes. Inch Calculator recommends adding about 10% for overage in many situations, especially when some loss, voids, or cleanup is expected [page:2]. Smaller, carefully edged decorative areas may use less, but zero waste is risky.
Yes. Calculator.net notes that gravel is commonly used for drainage because it allows water and excess moisture to move through open spaces between particles [page:1]. Pea gravel is widely used around drains and landscape borders, although angular stone may be preferred where tighter interlock is needed.
Inch Calculator says a dump truck can carry about 13 to 25 tons of gravel depending on truck size [page:2]. Actual legal payload depends on the truck, axle count, state rules, and travel route.
Sources and Methodology
- Calculator.net Gravel Calculator, depth guidance, gravel use cases, and gravel size discussion.
- Inch Calculator Gravel Calculator, pea gravel density table, overage guidance, and truckload reference.
- USGS Mineral Commodity Summaries 2026, Sand and Gravel (Construction), 2025 U.S. output, value, producing states, and market context.
- USGS Construction Sand and Gravel Statistics and Information, sector background.
- Core formulas used in this tool: area × depth = volume, cubic feet ÷ 27 = cubic yards, cubic yards × density = weight.
Built by Muhammad Ramzan Babar, physics researcher (PhD candidate). Reviewed by site author.
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This calculator provides estimates for planning purposes. For permitted structural work, foundations, multi-story construction, retaining walls over 4 feet, and commercial projects, calculations must be verified by a licensed structural engineer per IBC 2024 §1604. ConcreteCalculate.com is not liable for structural decisions made from these estimates.
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