A sand calculator estimates the exact amount of sand you need for landscaping and construction projects — whether you are filling a sandbox, laying a paver base, mixing concrete, or backfilling a trench. It converts your area dimensions and depth into cubic yards, cubic feet, and tons, accounting for different sand densities by type, so you can order the right amount and avoid expensive over- or under-ordering.
Sand Estimator
Area Shape
Rectangle Dimensions
Density varies by sand type; the calculator applies the correct value automatically.
Options
Project Breakdown
Coverage Reference: Cubic Yards per Area at Common Depths
| Depth | Cu Yd per 100 sq ft | Tons per 100 sq ft | 50 lb Bags |
|---|---|---|---|
| 1 inch | 0.31 cu yd | ~0.42 tons | ~17 bags |
| 2 inches | 0.62 cu yd | ~0.84 tons | ~34 bags |
| 3 inches | 0.93 cu yd | ~1.26 tons | ~50 bags |
| 6 inches | 1.85 cu yd | ~2.50 tons | ~100 bags |
| 12 inches | 3.70 cu yd | ~5.00 tons | ~200 bags |
Coverage values assume masonry sand density (1.35 tons/yd³). Actual coverage varies by sand type, compaction, and site conditions. Always verify quantities with your supplier.
How to Use the Sand Calculator
Ordering the wrong amount of sand is costly in both directions. Too little means a second delivery fee, a store run in the middle of your project, or a delayed finish. Too much means expensive, heavy leftover material that is difficult to store or haul away. This sand calculator helps you estimate the precise quantity — in cubic yards, cubic feet, tons, and 50 lb bags — so you can order the right amount the first time, whether you are buying in bulk or from a hardware store.
Step 1: Select Your Area Shape
Choose the shape that best matches your project area. Rectangle is the most common shape for sandboxes, patios, and fill areas. Circle handles round play areas, fire pit surrounds, and circular garden features. Triangle covers corner areas and angled spaces. Custom Sq Ft lets you enter a pre-measured area directly — ideal when you already have the square footage from plans or a previous measurement. For complex shapes, calculate each section separately and add the totals.
Step 2: Enter Your Dimensions and Depth
Use the unit toggle to switch between imperial (feet and inches) and metric (meters and centimeters). Enter the length and width of your area, then set the depth in inches. Depth is the most critical variable: a 1-inch change in depth has a big impact on the total quantity. Common depths are 1 inch for paver bedding sand, 2-3 inches for a play sand fill top-up, 6 inches for a new sandbox or volleyball court fill, and 12 inches for a deep fill application. If you already know the square footage, use the Custom Sq Ft option to skip dimension entry.
Step 3: Choose Your Sand Type
Select the sand type from the dropdown. Each sand type has a slightly different density that affects how many tons you need per cubic yard. Play sand is the lightest at 1.30 tons per cubic yard — it is fine-grained, washed, and safe for children. Masonry sand (1.35 t/yd³) is used for mortar, paver joints, and landscaping. Concrete sand is coarser at 1.40 t/yd³ and is the standard choice for concrete mixes and compacted paver bases. Coarse sand is the densest at 1.45 t/yd³ and is used in drainage and filtration applications. The calculator applies the correct density automatically.
Step 4: Add a Waste Factor
Enable the 10% waste factor toggle to add a safety buffer. Sand compresses under load, some spills during spreading, and uneven ground needs extra fill in low spots. The 10% buffer is the standard recommendation for most sand projects. If your area is perfectly flat and you are doing a precise application like paver bedding, you may disable it. If the ground is very uneven or you are filling a rough area, consider adding a larger margin manually by rounding up your depth estimate.
Step 5: Estimate Your Cost
Optionally enter your local price per ton to see a total material cost estimate. Sand prices typically range from $25 to $60 per ton for bulk delivery, depending on type and region. Play sand at hardware stores is often sold in 50 lb bags for $5 to $10 each — the calculator shows you the bag count so you can compare bulk versus bagged pricing. The 50 lb bag count shown assumes dry weight; actual bags may vary slightly. Delivery fees (typically $50 to $150 per load) are separate from material cost. Use the coverage reference table to quickly verify quantities at a glance.
FAQ
Is this sand calculator free to use?
Yes, this sand calculator is completely free with no signup required, no paywalls, and no usage limits. All calculations run entirely in your browser — your project dimensions are never sent to any server and stay private on your device.
Is my data private when using this tool?
Absolutely. Every calculation runs locally in your browser using client-side JavaScript. No project dimensions, measurements, or personal information are ever transmitted to a server. Your data stays entirely on your device.
How many tons of sand do I need for a sandbox or play area?
A typical 8 ft x 8 ft sandbox filled 6 inches deep needs about 2.4 cubic yards or roughly 3.2 tons of play sand. Enter your exact sandbox dimensions into the calculator above for a precise estimate. Play sand is lighter than construction sand at about 1.3 tons per cubic yard.
What is the difference between play sand, masonry sand, and concrete sand?
Play sand is fine-grained, washed, and rounded — safe for children and ideal for sandboxes and leveling. Masonry sand is finer and used for mortar, between pavers, and in joints. Concrete sand is coarser with angular grains that bind well in concrete mixes. Fill sand is the cheapest option for bulk fill and drainage applications.
How much does a cubic yard of sand weigh in tons?
Sand density varies by type. Play sand weighs about 1.3 tons per cubic yard, masonry sand about 1.35 tons, concrete sand about 1.4 tons, and fill sand about 1.35 tons. The calculator applies the correct density for your selected sand type automatically.
How many 50 lb bags of sand do I need?
The calculator shows you the exact number of 50 lb bags needed, which is useful when buying from a hardware store rather than ordering bulk delivery. One cubic yard weighs roughly 2,700 lbs, so it takes about 54 bags of 50 lb play sand to fill one cubic yard. Bags are typically sold by the 0.5 cu ft or 50 lb bag.
How deep should I fill sand under pavers or a patio?
For paver installation, a 1-inch layer of bedding sand is standard beneath the pavers. The compacted gravel base beneath that is typically 4-6 inches. For a concrete patio base, 2-3 inches of concrete sand is common. Enter your area dimensions and depth into the calculator to get the exact quantity needed.
Why should I add a waste factor to my sand order?
A 10% waste factor accounts for uneven ground that needs extra fill, material lost during spreading and compaction, and slight measurement inaccuracies. Running short mid-project often means paying a second delivery fee or a trip to the store, so ordering a small buffer is usually worth it.