How to convert cubic yards to tons
Yards measure volume and tons measure weight, so the bridge is always a density — and the density belongs to the material, not the math:
yards = tons ÷ lb/yd³ × 2,000 · the reverse trip
At the defaults — 3 yd³ of crushed gravel at 2,800 lb per yard — the load weighs 4.2 tons, or 3.81 metric tonnes; the full chain is in the worked example below. The one number you have to get right is the density, because a yard of mulch and a yard of concrete differ by five times in weight.
Why the material sets the weight
Yards measure the space a pile takes up; tons measure what it weighs. The bridge between them is density — pounds per cubic yard — and it climbs from featherweight mulch to dense concrete:
- Concrete — 4,050 lb/yd³ (2.03 tons): the heavy end; priced by the yard, not the ton, on the slab calculator.
- Asphalt, compacted — 3,915 lb (1.96 tons): paving mix, sold by the ton on the asphalt calculator.
- Crushed stone & gravel — 2,800 lb (1.4 tons): the aggregate default; the gravel calculator prices it.
- Sand, limestone, river rock — 2,700 lb (1.35 tons): the mid-weight cluster.
- Fill dirt 2,200, topsoil 2,000, mulch 800: the light end — soil and organics, where a yard is a ton or less.
The practical upshot is which unit the supplier quotes: dense materials like stone and asphalt sell by the ton, so the scale settles the bill, while lighter, bulkier ones like mulch and topsoil sell by the yard, because weighing them would just tax the buyer for damp weather. This converter is what lets you line up a per-ton quote against a per-yard one and compare the two honestly.
When you need yards, and when you need tons
The reason this converter exists is that the industry measures the same pile two ways, and the paperwork rarely matches the takeoff:
- You measured a volume: a bed 20 × 10 ft at 3 in gives you yards — convert to tons because the quarry sells by weight.
- The quote is per ton: aggregate, rip-rap and asphalt price by the ton; convert your yardage to compare bids.
- The quote is per yard: concrete, topsoil and mulch usually price by the yard; you may only need tons for hauling.
- You’re checking a delivery: the scale ticket reads in tons — convert your ordered yards to know what should be on it.
How many tons per cubic yard by material?
| Material | lb/yd³ | Tons per yd³ | Yd³ per ton |
|---|---|---|---|
| Concrete | 4,050 | 2.03 | 0.49 |
| Asphalt (compacted) | 3,915 | 1.96 | 0.51 |
| Crushed stone / gravel | 2,800 | 1.4 | 0.71 |
| Limestone / sand / river rock | 2,700 | 1.35 | 0.74 |
| Fill dirt | 2,200 | 1.1 | 0.91 |
| Topsoil | 2,000 | 1 | 1 |
| Mulch | 800 | 0.4 | 2.5 |
How to convert cubic yards to tons
- Get the cubic yards — from a supplier quote, or from dimensions on the cubic yard calculator first.
- Pick the material so the right density applies; this is the step that decides the answer.
- Read the tons — yards × lb/yd³ ÷ 2,000 — plus pounds and metric tonnes for spec sheets that want them.
- Use the reverse figure — cubic yards per ton — when a quote is priced by the ton and you need to compare.
- Enter a per-ton price to turn the weight straight into a material cost for the bid.
Worked example: 3 cubic yards of gravel in tons
The default, worked line by line — 3 yd³ of crushed gravel at 2,800 lb per yard, $45 a ton:
tons = 8,400 ÷ 2,000 = 4.2 tons · 3.81 metric tonnes
reverse = 2,000 ÷ 2,800 = 0.71 yd³ per ton
cost = 4.2 × $45 = $189 · mulch instead = 1.2 tons
Swap the material to mulch and the identical three yards weigh just 1.2 tons — same volume, a third of the weight, because density is doing all the work. That is the whole reason there is no single “yards to tons” number: the pile hasn’t changed size, only what it’s made of.
What this conversion doesn’t account for
The math is exact once the density is fixed — but the density itself is an estimate, and a few real-world things move the scale:
- Moisture. Wet sand and soil weigh up to 15% more than the dry averages here — the biggest single variable.
- Compaction and gradation. How tightly a material packs shifts its pounds per yard; quarry figures vary by source.
- Short ton vs tonne. US suppliers sell 2,000-lb short tons; a metric tonne is 2,204.6 lb — about 10% heavier, shown as tonnes.
- Waste and rounding. This converts a clean volume; add your own allowance and round to how the material is sold.
- The scale ticket. The weighed load at delivery governs the invoice — these figures size the order, not settle it.
Cubic yards to tons FAQ
How many tons are in a cubic yard?
Between 0.4 and 2 depending on the material: crushed gravel is about 1.4 tons per cubic yard, sand and limestone 1.35, topsoil 1, mulch only 0.4 — while concrete tips 2.03. There is no single yards-to-tons number; pick the material and the converter applies its density.
How many yards in a ton of gravel?
About 0.71 cubic yards — a short ton of crushed stone at 2,800 lb per cubic yard. Put differently, one full yard of gravel weighs 1.4 tons, so a ton is a bit over two-thirds of a yard.
How do I convert cubic yards to tons?
Multiply the cubic yards by the material’s pounds per cubic yard, then divide by 2,000: 3 yd³ of gravel × 2,800 lb = 8,400 lb = 4.2 tons. Going the other way, tons ÷ density × 2,000 = yards.
What is the difference between a ton and a tonne?
A US short ton is 2,000 lb; a metric tonne is 1,000 kg (2,204.6 lb) — about 10% heavier. Suppliers in the US sell short tons; spec sheets sometimes quote tonnes, so the converter shows both (4.2 tons = 3.81 tonnes for the default load).
Is a yard of sand heavier than a yard of gravel?
Slightly lighter dry — about 2,700 lb versus 2,800 for crushed gravel — but damp sand drinks water and can pass it. That swing is why densities here are estimating averages and the quarry scale has the final word.
How many tons is 10 cubic yards of gravel?
14 tons — 10 yd³ × 2,800 lb ÷ 2,000. That is a full tandem dump-truck load, so it is a useful sanity check: if a takeoff calls for 10 yards of stone, expect roughly one big truck at about 14 tons on the scale ticket.
Sources and standards
The conversion arithmetic is exact; the densities are the standard estimating figures the whole site is built on:
- Exact definitions: 2,000 lb per US short ton, 1,000 kg (2,204.6 lb) per metric tonne, 27 ft³ per cubic yard.
- Standard estimating densities: 4,050 lb/yd³ concrete down to 800 mulch — matched to concrete.ts, asphalt.ts and gravel.ts across the site.
- Supplier practice: aggregate, asphalt and rip-rap sold by the ton; concrete, topsoil and mulch by the yard.
- The scale ticket: the weighed delivery governs — moisture and gradation are why the pros trust the scale over the table.
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