Sand weighs about 1.5 US tons (3,000 lb) per cubic yard as delivered — roughly 111 lb per cubic foot. Moisture is the swing factor: bone-dry sand drops toward 1.35 tons per yard while saturated sand can reach 1.6.
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Sand Weight — Why Moisture Runs the Numbers
Sand is the material where “how much does it weigh” genuinely depends on the weather. The grains themselves never change, but the film of water clinging between them can add or subtract hundreds of pounds per cubic yard. Bone-dry sand runs about 1.35 tons per yard; typical as-delivered damp sand — the figure this calculator uses — is 1.5 tons (3,000 lb); sand soaked by a wet week at the supplier’s yard can push 1.6 tons. That’s a 500 lb swing on a single yard without a single extra grain.
Coarse aggregate doesn’t behave this way because rain drains straight through it. Sand’s fine grains hold water by capillary action in millions of tiny gaps, and it releases that water over days, not minutes. Whenever a sand number surprises you — a quote, a scale ticket, a bag weight — moisture is the first suspect.
How Much Does Sand Weigh in Each Condition?
| Condition | Tons per yd³ | lb per yd³ | lb per ft³ | 5-gal bucket |
|---|---|---|---|---|
| Dry (kiln or summer-stockpile) | 1.35 | 2,700 | 100 | 67 lb |
| Damp (typical delivery) | 1.50 | 3,000 | 111 | 74 lb |
| Wet (after sustained rain) | 1.60 | 3,200 | 119 | 79 lb |
For quick reference at the smaller end: a standard 50-lb bag of play or all-purpose sand holds about 0.45 cubic feet, forty 50-lb bags make a ton, and a yard of damp sand equals roughly 60 of those bags. A sandbox 6 × 6 ft filled 8 inches deep takes 24 ft³ — very nearly a full ton.
Buying Sand Without Paying for Water
- After heavy rain, prefer volume pricing. The loader bucket measures cubic yards regardless of moisture; the scale charges you for every pound of water. In a dry spell the logic flips and the scale becomes your friend.
- Don’t convert a wet-sand ticket with dry-sand density. A 6-ton delivery of soaked sand is 3.75 yards, not the 4.4 yards the dry figure suggests — a shortfall that shows up exactly at the end of the job.
- Match the sand to the task. Concrete sand (sharp, coarse) for paver bedding and mixes; masonry sand (finer) for mortar; play sand (washed, rounded) for sandboxes. They weigh similarly but do not substitute for one another.
- Cover the pile. A tarp keeps your stockpile’s weight — and your wheelbarrow count — stable from the first load to the last.
To size a sand order from project dimensions instead of converting a known amount, start with the sand calculator. And when a supplier quotes tonnage and you need to know the space it fills, the tons to cubic yards calculator reverses the math for any material.
Frequently Asked Questions
How much does a cubic yard of sand weigh?
Around 3,000 lb at typical as-delivered moisture, which is the 1.5 tons per cubic yard this calculator uses. Kiln-dried sand is closer to 2,700 lb per yard, and sand soaked by heavy rain can push past 3,200 lb.
Why does moisture change sand weight so much?
Sand’s fine grains trap water in the gaps between particles instead of draining it, so a yard can carry 300–500 lb of water without looking wet. Coarse gravel sheds the same rain in minutes; sand holds it for days.
How much does a 5-gallon bucket of sand weigh?
About 70–75 lb — a 5-gallon bucket holds roughly 0.67 cubic feet, and damp sand runs 111 lb per cubic foot. It is heavier than the same bucket of gravel, which surprises people because sand looks finer and lighter.
Is sand sold by the ton or by the yard?
Bulk suppliers quote both, but the scale ticket that decides your invoice reads in tons. If you buy in a wet week you are paying for water weight, so ordering by the yard — where the loader bucket measures volume — can be the better deal after rain.