Sand Calculator
Calculate sand volume for a measured space, with optional bags, weight, and quoted cost.
Free calculator. Mixed units and fractions welcome.1 yd³ = 27 ft³
At a glance
Sand Calculator
For a rectangular sand layer, multiply length and width in feet by depth in inches, then divide by 324. A weight estimate also needs a bulk density for the sand’s moisture and delivery condition.
Materials
Measure the layer or container
Use the inside dimensions of a sandbox or the planned footprint of a layer. For circular spaces, select Circle. For a known surface area, enter the area and the depth. The tool converts independent feet, inch, and metric inputs before calculating.
Sand volume (yd³) = area (ft²) × depth (in) ÷ 324
A 4 ft by 4 ft area filled 6 inches deep contains 8 cubic feet, or about 0.296 cubic yards. Six inches is an illustrative input, not a recommended depth for every sandbox or bedding layer.
Materials
A sandbox example with a stated bag yield
The manufacturer’s datasheet for a 50 lb bag of Sakrete Natural Play Sand lists coverage of 6 square feet at 1 inch deep. That corresponds to 0.5 cubic feet of product coverage. It is a stated yield for that product, not a rule that every 50 lb sand bag holds the same volume.
4 ft × 4 ft × (6 in ÷ 12) = 8 ft³
8 ft³ ÷ 0.5 ft³ per bag = 16 whole bags
This example needs 16 bags before an extra allowance. Choose Try an example to load these dimensions and the 0.5 ft³ bag yield and see the full calculation. The coverage printed on your chosen bag takes precedence if its specification differs.
Sakrete identifies this product for sandboxes and landscaping. Follow the current product instructions for the intended application. If a sand product only states weight, use a matching bulk density to convert weight and volume; do not invent a bag volume.
Materials
Dry, damp, and delivered sand
Bulk density is mass divided by total bulk volume, including spaces between particles. Moisture and packing condition affect that relationship. Use a density supplied for the material you are actually buying; a sand particle’s density is not a substitute.
If a supplier quotes tons, confirm the ton definition and use a matching bulk density to compare the weight with your required volume. The dedicated weight converter supports US short tons, metric tonnes, long tons, pounds, and kilograms.
Materials
Finished depth and material specification
A bedding layer, play area, filter application, and masonry task can require different sand and different placement methods. Follow the relevant product or project specification. The calculator estimates the space you enter and does not choose a grade of sand or a structural layer design.
Keep finished compacted depth separate from a loose delivery quantity. If your project needs a volume conversion factor, use a documented ratio in the fill and excavation tool. An allowance is not a universal compaction factor.
Materials
Estimate from the supplier’s quote
Enter a volume price in Ordering options for a material estimate. Use the supplier’s bag volume for bags, and a stated usable load capacity for load counts. Delivery, tax, spreading, and minimum order charges are separate. A load count based on volume does not establish a vehicle’s weight capacity.
Common questions
Sand questions, answered.
Can I calculate sand using square meters?
Yes. Select Known area and choose square meters, or enter length and width in meters. Add the required depth in its own unit. The results include cubic meters as well as cubic yards and cubic feet.
How much does a cubic yard of sand weigh?
There is no single fixed weight for every type and condition of sand. Multiply 27 cubic feet by a bulk density in pounds per cubic foot, or use the density based weight converter.
Does the tool include extra sand automatically?
No. The measured volume is shown first. Extra material and order rounding only affect the planned quantity when you enter those options.
Can I use bag weight to get bag count?
A weight label does not establish a sand bag’s volume unless you also know its bulk density in the relevant condition. Use a stated bag volume for the volume based bag field.
Check the basis