Square Yards to Tons Calculator
Enter your area in square yards and depth in inches — this calculator converts to cubic yards, then to tons for your material. Landscapers and suppliers quote by the ton, so this tells you exactly how much to order.
Densities are typical loose-delivered values: gravel 1.4–1.5, crushed stone 1.4–1.5, sand 1.3–1.5, topsoil 1.0–1.3, mulch 0.3–0.5 tons per cubic yard. Wet or compacted material weighs more.
Estimates only. Densities vary with moisture, source, and compaction — confirm the supplier's tons-per-yard figure before ordering, and round up.
How the square yards to tons calculator works
Suppliers sell heavy materials by weight, but projects are measured by area and depth — so the conversion runs in two steps. First, area times depth gives volume: one square yard at 36 inches deep is exactly one cubic yard, so cubic yards = square yards × (depth ÷ 36).
Second, volume times density gives weight. A cubic yard of gravel weighs about 1.4–1.5 tons, while the same volume of mulch is only 0.3–0.5 tons — which is why the material choice changes the answer more than the area does. The calculator shows a low–high range because density varies with moisture and compaction.
Always order about 10% extra. Material compacts under its own weight and in the truck, low spots take more than the math says, and a short load costs more in delivery fees than the extra half-yard would have.
cu yd = sq yd × depth/36 · tons = cu yd × density · order = tons × 1.10
Related tools
Keep exploring: Topsoil Calculator and Gravel Calculator estimate the same materials starting from length, width, and depth in feet — handy when you measured the site with a tape instead of knowing the square yardage.
Square yards to tons calculator FAQ
What is the formula to convert square yards to tons?
Two steps. First, square yards to cubic yards: cubic yards = square yards × (depth in inches ÷ 36). Second, cubic yards to tons: tons = cubic yards × the material's density in tons per cubic yard (gravel ≈ 1.4–1.5, topsoil ≈ 1.0–1.3, mulch ≈ 0.3–0.5). For example, 100 square yards at 4 inches deep is 11.1 cubic yards, which is about 15.5–16.7 tons of gravel.
How many tons of gravel do I need for a driveway?
About 12–16 tons for a typical 20 × 10 ft driveway at 4 inches deep. That area is 22.2 square yards, or 9.9 cubic yards — at 1.4–1.5 tons per cubic yard of gravel, that is 13.8–14.8 tons. Order 10% extra to cover compaction and uneven spots.
How deep should topsoil be for a garden bed?
3–6 inches is typical for new garden beds; 3 inches is enough to top-dress an existing bed, while 6 inches gives roots room in a fresh bed. A 10 × 4 ft bed at 3 inches deep needs about 0.37 cubic yards — roughly 0.4–0.5 tons of topsoil.
How deep should a gravel driveway be?
4–6 inches of gravel over a compacted base is the standard for residential driveways. Heavy vehicles or soft soil call for 6 inches. Going from 4 to 6 inches adds 50% more material, so measure depth carefully before ordering.
How deep should the base be under a paver patio?
4–6 inches of compacted crushed stone, plus 1 inch of bedding sand. A 15 × 12 ft patio at 6 inches of base is 6.7 cubic yards — about 9.3–10 tons of crushed stone before the sand layer.
How many tons of mulch do I need?
Mulch is light — about 0.3–0.5 tons per cubic yard. A 500 sq ft bed at 3 inches deep is 4.6 cubic yards, or roughly 1.4–2.3 tons. Bulk mulch is usually sold by the cubic yard, so the yard figure is what you order.
Should I use topsoil or fill dirt for my project?
Use topsoil for anything you will plant in — it is the nutrient-rich upper layer. Use fill dirt (cheaper, mostly mineral soil with little organic matter) for raising grade, filling holes, or building up under structures. Fill dirt is denser, around 1.2–1.5 tons per cubic yard.