What is a Sand Calculator?
A sand calculator helps you determine the volume and weight of sand needed for construction, landscaping, and other projects. Sand is sold by the cubic yard or by the ton, so knowing exactly how much you need prevents over-ordering (wasting money) or under-ordering (causing project delays).
The calculator works by computing the volume of the area to be filled based on its length, width, and desired depth, then converting that volume into cubic yards and estimating the weight based on sand density. Different types of sand have different densities, so selecting the correct type ensures accurate weight estimates.
Sand Volume Formula
Types of Sand
| Sand Type | Density (lb/cu ft) | Common Use |
|---|---|---|
| Construction Sand | 100 | Concrete mix, mortar, general fill |
| Play Sand | 90 | Sandboxes, playgrounds |
| Masonry Sand | 100 | Bricklaying, paver base |
| Utility Sand | 110 | Pipe bedding, backfill |
| Beach Sand (wet) | 120–130 | Landscaping |
Sand Density Reference
Sand density varies depending on moisture content, compaction, and grain size. Dry loose sand weighs approximately 90–100 lb/cu ft, while wet packed sand can weigh 120–130 lb/cu ft. For estimating purposes, 100 lb/cu ft (1.6 tons/cu yd) is a commonly used average for dry sand.
Worked Example
Fill a 20 ft × 10 ft area with 4 inches of sand (density 100 lb/cu ft):
Cubic yards = 66.67 / 27 = 2.47 cu yd
Weight = 66.67 × 100 = 6,667 lbs = 3.33 tons
Frequently Asked Questions
How many cubic yards of sand do I need?
Multiply your area's length by width by depth (all in feet), then divide by 27 to convert to cubic yards. For example, a 10 × 10 ft area filled 6 inches deep needs (10 × 10 × 0.5) / 27 = 1.85 cubic yards.
How much does a cubic yard of sand weigh?
A cubic yard of dry sand weighs approximately 2,700 lbs (1.35 tons). Wet sand can weigh up to 3,500 lbs (1.75 tons) per cubic yard. The exact weight depends on the sand type and moisture content.
How much area does a ton of sand cover?
One ton of sand covers approximately 100 square feet at a 2-inch depth, or about 80 square feet at a 3-inch depth. Coverage varies based on sand type and how tightly it is compacted.
Should I order extra sand?
Yes, order 5–10% more than calculated to account for spillage, settling, and uneven ground. Sand compacts when watered and tamped, so the final settled depth will be less than the initial loose depth.