Sand Calculator

About the Sand Calculator

Sand is used in countless construction and landscaping projects — from paver bases and playgrounds to concrete mixing and pool filter media. Ordering the right amount is critical: too little delays your project; too much wastes money and leaves surplus to dispose of.

This calculator computes the volume, weight, and number of bags for any rectangular, circular, or triangular area at a specified depth. It supports different sand types with their respective bulk densities, provides cost estimates for both bulk delivery and bagged sand, and includes coverage tables for quick reference.

Whether you're building a patio base, filling a sandbox, leveling ground for a shed, or mixing concrete, this calculator handles the unit conversions and density calculations to give you accurate material quantities. It also helps you translate depth into weight and bag count so you can compare delivery options before ordering. That is useful when you need a fast check before calling in a bulk delivery.

When This Page Helps

Use this calculator when you need a quick estimate for sand volume, weight, and bag count before ordering or hauling material. It is useful for patios, play areas, leveling jobs, and any project where converting depth into bulk material is the part people usually misjudge. The extra context helps you avoid shortages and over-ordering on small projects.

How to Use the Inputs

1. Choose the area shape: rectangular, circular, or triangular.
2. Enter the dimensions (length × width, diameter, or base × height).
3. Enter the required depth/thickness.
4. Select the sand type for accurate weight calculation.
5. Review volume, weight, bags needed, and cost.
6. Check the coverage table for different depth scenarios.
7. Add 10-15% to your order for compaction and waste.

Example Calculation

Tips & Best Practices

• Measure depth needed after compaction — sand compresses 10-15%.
• Sharp/coarse sand for construction; fine/play sand for sandboxes and volleyball courts.
• Bulk delivery usually requires a dump truck — ensure site access for the vehicle.
• Wet sand weighs significantly more — account for this during transport.
• For concrete mixing, the standard ratio is 1 cement : 2 sand : 3 gravel.
• Always use washed play sand for children's sandboxes to avoid silica dust.

Types of Sand and Their Applications

All-purpose (concrete) sand has angular grains, compacts well, and drains properly — ideal for construction bases, concrete mixes, and drainage projects. Mason sand is finer and smoother, used for mortar, sandboxes, and volleyball courts. Play sand is washed, screened, and certified non-toxic for children.

Utility sand and fill sand are the coarsest and cheapest options, used for backfilling trenches and general fill. Polymeric sand contains binding agents that harden when wet, used exclusively for paver joints.

Delivery and Material Handling

Bulk sand is sold by the cubic yard and delivered by dump truck. A standard dump truck holds 10-14 Cu yd (~12-18 tons). Half-truck loads (5-7 cu yd) are available from most suppliers. For small projects, 50 lb bags from hardware stores are convenient but cost 3-5× more per ton.

Compaction and Settlement

Freshly placed sand will settle 10-15% when compacted with a plate compactor or hand tamper. For structural applications (paver base, foundation bedding), compact in 2-inch lifts, adding water to achieve ~70% moisture saturation. The compacted density is typically 5-15% higher than loose bulk density.

Frequently Asked Questions

• How much does a cubic yard of sand weigh?

  Dry sand: ~2,500-2,700 lb/cu yd (1.25-1.35 tons). Wet sand: ~3,000-3,400 lb/cu yd. The exact weight depends on moisture, compaction, and grain size.

• How much extra should I order?

  Order 10-15% extra for compaction, waste, and uneven ground. Sand compacts 10-15% when vibrated or tamped. If the area is irregular, add 15-20%.

• What type of sand for pavers?

  Use coarse/sharp sand (concrete sand) for the base layer. Use fine polymeric sand for joints between pavers. Never use play sand or beach sand for structural applications.

• How deep should sand be for a sandbox?

  Minimum 12 inches (30 cm) for safety under play equipment. For a basic sandbox, 6-8 inches is typical. Use washed, certified play sand only.

• Is bulk or bagged sand cheaper?

  Bulk delivery is cheaper for large projects (>1 cu yd). Under that, bagged sand from hardware stores is more practical despite costing 3-5× more per ton.

• How much area does a ton of sand cover?

  At 1 inch depth: ~200 sq ft. At 2 inches: ~100 sq ft. At 3 inches: ~67 sq ft. Actual coverage varies by sand type and compaction.