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Sand Calculator

For paver bedding, sandboxes, leveling and masonry — yards, tons and bags.

Updated 2026-10-20 · Based on: supplier bulk densities (gravel ≈ 1.4 tons per yd³).

How to use the Sand Calculator

  1. Enter the area and depth.
  2. Choose dry, wet, masonry or play sand.
  3. Read yards, tons and bags.

Formula

Sand weighs about 1,600 kg/m³ dry (≈ 1.35 tons per yd³) and up to 1,900 kg/m³ wet.

Tons = volume × weight. A 50 lb bag holds about ½ ft³.

Worked example

With the values preset in the calculator above: (Rectangle)

Length
20 ft
Width
10 ft
Thickness
2 in
Material
Dry sand
Extra for waste
5 %
Sand needed
1.3 yd³ (35 ft³)
Weight
1.75 tons (3,496 lb)
Estimated cost
$69.92
Bags (50 lb / 25 kg)
70

Frequently asked questions

How much sand for a sandbox?

A 5 × 5 ft box filled 12 in deep holds 0.93 yd³ (25 ft³) — about 49 bags of 50 lb play sand.

How much sand under pavers?

A 1 in bedding layer: one ton covers about 250 ft².

How much does a yard of sand weigh?

About 2,700 lb (1.35 tons) dry, up to 3,200 lb wet.

More calculators

All construction calculators →

Estimates only — check quantities with your supplier and local building code before you order.