Formula and method
Base volume = area × depth. Adjusted volume = base volume × (1 + your allowance ÷ 100). Cubic yards = cubic feet ÷ 27. Optional pounds = adjusted cubic feet × your entered lb/ft³ density.
Worked example
A 12 ft × 8 ft area at 2 in depth contains 16 ft³ of sand, about 0.593 yd³, before any allowance. Weight is omitted until a supplier bulk density is entered.
Assumptions
Sand type, grading, moisture, and compaction change bulk density. No universal tonnage conversion is assumed. Area is rectangular or supplied directly; irregular sites need separate sections.
Important limitations
This is a quantity-planning aid. Verify installed depth, actual delivery/compaction conditions, and material specifications with your supplier. It does not assess structural suitability or engineering requirements.
Frequently asked questions
Can I use a measured area instead of length and width? Yes, select Known area. Does the tool choose sand density? No; the density field is intentionally optional and editable.
Privacy
Your inputs and result stay in this browser tab. This calculator does not send entered values to a server, save them in browser storage, or put them in the URL.