How to calculate sand
Sand is estimated by volume, then converted to weight for ordering by the ton:
Cubic yards = (Length ft × Width ft × Depth ft) ÷ 27
Tons = Cubic yards × density (≈ 1.35 tons/cu yd)
A 20 ft × 10 ft area covered 2 inches deep is about 1.23 cubic yards, or roughly 1.7 tons of dry sand.
Common depths
- Paver bedding: 1 inch of coarse sand over a compacted base.
- Pool / leveling layer: about 2 inches.
- Sandbox: 6–12 inches of play sand.
Weight notes
A cubic yard of dry sand weighs about 2,700 pounds (1.35 tons), but moisture adds weight — wet sand can reach 3,000 lb. If your supplier quotes a different density, enter it above.
Frequently asked questions
How do I calculate how much sand I need?
Multiply the length, width, and depth in feet to get cubic feet, then divide by 27 for cubic yards. Depth is usually in inches, so divide it by 12 first. A 20 ft × 10 ft area at 2 inches deep is about 1.23 cubic yards.
How many tons of sand are in a cubic yard?
About 1.35 tons. A cubic yard of dry sand weighs roughly 2,700 pounds, though wet sand is heavier — closer to 3,000 pounds. Sand is often sold by the ton, so this conversion lets you order the right amount.
How deep should a sand layer be?
For a paver or flagstone bedding layer, 1 inch of sand over a compacted base is standard. For a sandbox, 6–12 inches is typical. For leveling under a pool, 2 inches is common. Set the depth to match your project.
What type of sand should I use?
Coarse or "concrete" sand is used under pavers and in concrete mixes; fine "play" sand is for sandboxes; "mason" sand is finer still for mortar. The volume is the same regardless of type — only the price and exact density differ slightly.
Disclaimer: Sand density varies by type and moisture, so weight is an estimate. Confirm coverage and pricing with your supplier.