How to use the Sand Cubic Feet Calculator
- Use the coverage footprint and sand depth. Enter the density of the ordered sand in its actual moisture and packing condition.
- Choose length and width or a known coverage area. Enter depth, allowance and actual package yield; add supplier density or price only when needed.
- Select Calculate. Review the result and its working; if you change an input, calculate again before copying or sharing.
Sand formula
First calculate the geometric fill volume. Apply the entered percentage allowance to that volume, then divide by product yield and round up to whole bags.
Base volume = area × depth; order volume = base × (1 + allowance ÷ 100); bags = ceil(order volume ÷ bag yield)
What the terms mean
- Length
- A measured length in the selected unit; it is converted to feet before volume is calculated.
- Width
- A measured length in the selected unit; it is converted to feet before volume is calculated.
- Coverage area
- The measured area to cover, expressed in the selected square unit.
- Fill depth
- A measured length in the selected unit; it is converted to feet before volume is calculated.
- Extra volume allowance
- A percentage added to the geometric volume for the planning assumption you choose.
- Actual yield per bag
- Illustrative starting value. Replace with the volume or yield printed on your product.
- Bulk density (optional)
- Enter the supplier’s density for weight. Zero hides the weight estimate.
- Price (optional)
- Price per selected bag, volume unit or US short ton; use one currency consistently.
Sand worked examples
Estimate sand for an even layer
Cover a 10 ft × 6 ft area at 3 in depth. Add 5% extra volume and enter an illustrative yield of 0.5 ft³ per bag.
- Area 60 ft² × depth 0.25 ft = 15 ft³
- Order volume = 15 × (1 + 5 ÷ 100)
- Bags = round up (15.75 ÷ 0.5)
Answer: 15.75 ft³. Base volume: 15 ft³; Cubic yards: 0.583333 yd³; Litres: 445.990334 L; Whole bags: 32 bags.
Convert a sand layer into order quantities
Cover 100 ft² at 2 in depth with no allowance. The example package holds 0.5 ft³; the illustrative bulk price is 10 currency units per yd³.
- Area 100 ft² × depth 0.166667 ft = 16.666667 ft³
- Order volume = 16.666667 × (1 + 0 ÷ 100)
- Bags = round up (16.666667 ÷ 0.5)
Answer: 16.666667 ft³. Base volume: 16.666667 ft³; Cubic yards: 0.617284 yd³; Litres: 471.947443 L; Whole bags: 34 bags; Estimated cost: 6.17284 currency units.
Sand Cubic Feet Calculator FAQs
Can this measure sand for a sandbox?
Yes. Use the inside sandbox footprint and the intended fill depth.
Why are bag counts rounded up?
A partial bag cannot supply the full required volume. Bag counts use the order volume including your entered allowance.
Measurement guide for Sand
Use a representative layer depth over the measured area. Moisture and compaction affect delivery weight, so obtain density from the supplier.
Assumptions and limits
Wet sand and dry sand can have different bulk density. Do not assume one pound-per-cubic-foot factor applies to every sand.
Bag yield and bulk density depend on the actual product. Allowance is applied to volume; bags are rounded up.
Check your result
Compare the base volume with area multiplied by depth in feet. The order volume includes your allowance; a bag count is rounded up using the entered product yield.