Sand Calculator

Calculate sand needed for your project.

What Is a Sand Calculator?

A sand calculator estimates the volume and weight of sand needed to fill a defined area to a specified depth. It converts your project measurements into cubic yards and tons, which are the standard ordering units for bulk sand from quarries and landscape suppliers. The calculator also shows the equivalent number of 50-pound bags for smaller projects where bulk delivery is impractical. Whether you are preparing a paver base, filling a sandbox, leveling a yard, or mixing mortar, accurate sand estimation prevents costly over-ordering and frustrating shortages.

Sand is one of the most versatile construction and landscaping materials, used in everything from concrete mixing to playground surfacing. Its density varies by type and moisture content, making manual volume-to-weight conversions error-prone. This calculator handles those conversions automatically, giving you both volume and weight figures that match how suppliers sell and deliver the product.

How the Sand Calculation Works

The formula converts rectangular dimensions into volume and then applies a density factor for weight.

Volume (cubic yards) = (Length x Width x Depth in feet) / 27

Weight (tons) = Volume in cubic yards x Density factor

Since depth is typically measured in inches, the calculator converts it to feet by dividing by 12 before calculating volume. One cubic yard contains 27 cubic feet.

The density factor converts volume to weight. All-purpose sand averages 1.3 tons per cubic yard. Mason sand is slightly heavier at 1.35 tons per cubic yard. Concrete sand is denser at 1.4 tons per cubic yard. Play sand is lighter at about 1.1 tons per cubic yard because it is washed and has more consistent, rounder grain shapes that pack less densely.

How to Use This Calculator

Enter the area dimensions. Input the length and width in feet. For non-rectangular areas, calculate the equivalent area and enter dimensions that produce the same square footage.
Set the depth. Enter the desired sand depth in inches. Common depths range from 1 inch for paver leveling beds to 6 inches for sandbox fill.
Select the sand type. Choose from all-purpose sand, mason sand, concrete sand, play sand, or paver base sand. Each has a different density that affects weight calculations.
Enter the price per ton. The calculator computes your total material cost and compares bulk versus bagged pricing.
Review the output. Results include cubic yards, tons, pounds, and the number of 50-pound bags equivalent, along with a coverage reference table for different depths.

Worked Examples

Example 1: Paver Patio Base

A patio area is 15 by 20 feet at 1 inch deep using mason sand:

Volume: (15 x 20 x 0.083) / 27 = 0.93 cubic yards
Weight: 0.93 x 1.35 = 1.25 tons
Bags equivalent: 50 bags of 50 lbs
At $35/ton: $43.75

Example 2: Children's Sandbox

A sandbox measures 8 by 8 feet at 6 inches deep using play sand:

Volume: (8 x 8 x 0.5) / 27 = 1.19 cubic yards
Weight: 1.19 x 1.1 = 1.31 tons
Bags equivalent: 52 bags
At $45/ton: $58.67

Example 3: Concrete Mixing

A project requires sand to fill an area 10 by 10 feet at 4 inches deep using concrete sand:

Volume: (10 x 10 x 0.333) / 27 = 1.23 cubic yards
Weight: 1.23 x 1.4 = 1.73 tons
At $30/ton: $51.85

Example 4: Yard Leveling

Filling a low area 25 by 15 feet at 3 inches deep with all-purpose sand:

Volume: (25 x 15 x 0.25) / 27 = 3.47 cubic yards
Weight: 3.47 x 1.3 = 4.51 tons
At $25/ton: $112.73

Tips for Working with Sand

Compact sand in layers. For load-bearing applications like paver bases and under concrete, spread sand in 1 to 2 inch layers and compact each layer with a plate compactor before adding the next. This creates a stable, uniform base that resists settling.

Keep sand dry before use. Wet sand is heavier, harder to spread, and more difficult to compact evenly. If possible, schedule delivery during dry weather and cover stockpiles with tarps to prevent rain saturation.

Order slightly more than calculated. Add 5 to 10 percent to your calculated amount to account for uneven subgrade, compaction losses, and irregular edges. A small surplus is inexpensive insurance against running short.

Choose the right sand grade. Fine mason sand is ideal for mortar joints and smooth leveling. Coarse concrete sand works better for drainage applications and concrete mixing. Using the wrong grade can compromise project quality and longevity.

Use landscape fabric for decorative applications. When using sand as a decorative ground cover or in garden paths, install landscape fabric underneath to prevent sand from mixing with the soil and to suppress weed growth through the sand layer.

Calculate moisture weight adjustment. If your sand will be delivered wet (common after rain), the actual weight per cubic yard can be 20 to 30 percent higher than dry sand. This means you need fewer cubic yards than calculated, but the delivered weight per load remains similar. Confirm moisture conditions with your supplier.

Frequently Asked Questions

How much sand do I need for a paver patio base?

A paver base layer typically requires 1 inch of leveling sand over compacted gravel. For a 200-square-foot patio at 1-inch depth, you need approximately 0.62 cubic yards or 0.80 tons of sand. Some installers prefer a 1.5-inch sand bed for easier leveling. Use mason sand or concrete sand for paver projects since these grades compact evenly.

How many tons does a cubic yard of sand weigh?

One cubic yard of dry sand weighs approximately 1.3 tons or 2,600 pounds. The exact weight varies by sand type and moisture content. Mason sand weighs about 1.35 tons per cubic yard, concrete sand about 1.4 tons, and play sand about 1.1 tons. Wet sand can weigh 20 to 30 percent more than dry sand due to water filling spaces between grains.

How much sand do I need for a sandbox?

A standard backyard sandbox measuring 6 by 6 feet with 6 inches of sand requires about 0.67 cubic yards or approximately 0.73 tons of play sand. This equals roughly 1,470 pounds. Purchase certified play sand that has been washed and screened to remove dust, debris, and contaminants. Fill the sandbox at least 6 inches deep for comfortable play.

What type of sand should I use for my project?

Use mason sand for mortar mixing and paver leveling since it is fine-grained and compacts smoothly. Concrete sand has a coarser texture and works best for mixing concrete and as a drainage material. Play sand is washed and screened for child safety. All-purpose fill sand is economical for backfilling holes, leveling ground, and general landscaping.

Is it cheaper to buy sand in bulk or bags?

Bulk sand costs $20 to $45 per ton delivered, which equals approximately $0.01 to $0.02 per pound. Bagged sand at home improvement stores costs $4 to $6 per 50-pound bag, or $0.08 to $0.12 per pound. Bulk delivery is 4 to 8 times cheaper per pound and is the better value for any project requiring more than 500 pounds.

How deep should sand be for a volleyball court?

Official volleyball court sand should be 12 to 18 inches deep for recreational play and at least 18 inches for competitive courts. A regulation court is 26 by 52 feet with at least 10 feet of clearance on each side. Filling a 46-by-72-foot area (with clearance) to 12 inches requires approximately 92 cubic yards or about 101 tons of sand.

How do I calculate sand for an irregular shaped area?

Break the irregular shape into simpler rectangles, triangles, or circles. Calculate the area of each shape separately, then add them together. Apply the desired depth to the total area to get the volume. For curved areas, use the closest geometric approximation and add 5 to 10 percent extra to account for estimation imprecision.

Can I use sand for drainage improvement?

Coarse sand and sand-gravel mixes can improve drainage in specific applications such as French drains, behind retaining walls, and in garden bed amendments. However, sand alone does not significantly improve clay soil drainage when mixed into the ground. For clay soils, adding compost and organic matter is more effective than sand for improving soil structure.