How is sand volume calculated?

Volume = Length × Width × Depth for rectangular areas, or π × (Diameter ÷ 2)² × Depth for circular areas. All dimensions must be converted to the same unit before multiplying.

How is sand weight calculated?

Weight = Volume × Density. Dry sand density is typically 1,440–1,680 kg/m³ (90–105 lb/ft³). The exact density varies by sand type and moisture content; this calculator uses standard industry averages for each type.

How many tons of sand do I need?

Divide the total weight in pounds by 2,000 for short tons. For example, 6,000 lb ÷ 2,000 = 3 short tons. Metric tons are kilograms divided by 1,000.

What depth of sand should I use?

For sandboxes and play areas, 6–12 inches (15–30 cm) is common. For paving bases, 1–2 inches (2.5–5 cm) of bedding sand is standard. For mortar mixes, sand volume is determined by the mix ratio, not a layer depth.

Why should I add a waste factor?

Sand compacts under load and some is always lost during spreading. Adding 5–10% to your calculated amount ensures you will not run short mid-project, especially for large areas.

Does sand type affect the calculation?

Yes. Fine play sand is lighter (~1,440 kg/m³) while coarse masonry sand is denser (~1,680 kg/m³). Selecting the correct type gives a more accurate weight and cost estimate.

How can I calculate sand needed for an area?

Multiply the area (length × width, or π × radius² for a circle) by the desired depth to get volume in cubic feet or cubic meters. Convert to cubic yards by dividing cubic feet by 27. To get weight, multiply volume by sand density (about 100 lb/ft³ or 1,600 kg/m³ for dry sand), then add 5–10% for waste and compaction.

Sand Calculator

Name: Sand Calculator
Availability: InStock
Author: Nham Vu

Calculate the volume and weight of sand needed for any rectangular or circular area given your dimensions and desired depth.

Area & Depth

Length (ft)

Width (ft)

Depth (in)

Waste Factor (%)

Sand Type

Summary