Why the Ton vs Cubic Yard Question Matters for Your Budget
The single most common source of confusion when budgeting a gravel driveway is receiving quotes from different suppliers in different units. One quarry prices by the ton, the next prices by the cubic yard, and without a reliable way to convert between them, meaningful comparison is impossible. Getting this conversion wrong by even a modest margin on a large order can mean overpaying by hundreds of dollars or, worse, under-ordering and paying a second delivery surcharge to top up. This guide resolves that confusion with clear conversion factors, worked examples, and a practical framework for comparing any gravel quote accurately.
For the broader context of how material cost fits into total project spend, the gravel driveway cost guide for homeowners covers all cost components from excavation through to finishing.
The Core Difference: Weight Versus Volume
Tons measure weight; cubic yards measure volume. Gravel suppliers use both because each unit suits a different point in the supply chain. Quarries and aggregate producers weigh loads on truck scales before dispatch, so pricing by ton reflects exactly what is on the truck. Landscaping retailers selling bagged or scooped material work in volume because a cubic yard is easier to display and estimate visually. Neither unit is more accurate than the other, but they describe different physical properties of the same material, and the relationship between them depends entirely on the density of the specific grade being purchased.
Bulk density is the key variable. It describes how much a given volume of loose, uncompacted material weighs. For standard crushed stone grades such as #57 or #67, bulk density is approximately 1.4 to 1.5 tons per cubic yard. This means that one cubic yard of #57 stone weighs roughly 1.4 tons, and conversely, one ton of the same material occupies approximately 0.71 cubic yards. The crushed gravel stone sizes chart and grades guide provides further background on how grade and particle size relate to material properties.
Density Factors for Common Driveway Gravel Grades
Using the correct density factor for each material type is essential for accurate conversion. The table below provides reference density figures for the grades most commonly used in residential driveway construction.
| Material | Bulk Density (tons per cubic yard) | Cubic Yards per Ton |
|---|---|---|
| Crusher Run / Road Base | 1.4 to 1.5 | 0.67 to 0.71 |
| #2 Crushed Stone | 1.35 to 1.45 | 0.69 to 0.74 |
| #3 Crushed Stone | 1.35 to 1.45 | 0.69 to 0.74 |
| #57 Crushed Stone | 1.4 to 1.5 | 0.67 to 0.71 |
| #67 Crushed Stone | 1.35 to 1.45 | 0.69 to 0.74 |
| Pea Gravel (dry) | 1.3 to 1.4 | 0.71 to 0.77 |
| Recycled Concrete Aggregate | 1.2 to 1.35 | 0.74 to 0.83 |
| Asphalt Millings (RAP) | 1.2 to 1.3 | 0.77 to 0.83 |
When a supplier cannot provide a specific density figure, using 1.4 tons per cubic yard as a working assumption for standard crushed stone gives a result within a few percent of the true value for most structural grades. For decorative materials such as pea gravel or lightweight recycled aggregates, 1.3 is a more conservative and appropriate default.
How to Convert Between Tons and Cubic Yards
Converting tons to cubic yards requires dividing the weight in tons by the bulk density. Converting cubic yards to tons requires multiplying the volume by the bulk density. Both operations are straightforward once the correct density factor is identified.
To convert tons to cubic yards: divide tons by density. For example, 15 tons of #57 crushed stone at a density of 1.4 gives 15 divided by 1.4, which equals approximately 10.7 cubic yards.
To convert cubic yards to tons: multiply cubic yards by density. For example, 8 cubic yards of #57 at 1.4 gives 8 multiplied by 1.4, which equals 11.2 tons.
To compare a price per cubic yard against a price per ton: divide the cubic yard price by the bulk density to get the equivalent price per ton. For example, a supplier quoting $42 per cubic yard for material with a density of 1.4 tons per cubic yard is charging the equivalent of $42 divided by 1.4, or $30 per ton. A second supplier quoting $28 per ton is therefore cheaper on a like-for-like basis, even though the cubic yard price looked similar. The detailed guide to bulk gravel pricing per ton versus cubic yard walks through further worked examples using this method.
2026 Reference Prices: Ton and Cubic Yard Side by Side
The table below presents indicative 2026 material prices for common driveway grades expressed in both units, using a density of 1.4 tons per cubic yard as the conversion factor. All prices are quarry gate or supplier gate before delivery.
| Grade | Price per Ton | Equivalent Price per Cubic Yard |
|---|---|---|
| Crusher Run / Road Base | $10 to $25 | $14 to $35 |
| #3 Crushed Stone | $15 to $30 | $21 to $42 |
| #57 Crushed Stone | $20 to $45 | $28 to $63 |
| #67 Crushed Stone | $22 to $45 | $31 to $63 |
| Pea Gravel (standard) | $25 to $55 | $33 to $73 |
| Recycled Concrete Aggregate | $6 to $20 | $8 to $26 |
| Asphalt Millings | $7 to $20 | $9 to $26 |
Regional variation is significant and these ranges reflect national averages across the continental United States. Prices in high-demand urban markets and in regions where aggregate must be transported over long distances tend to sit at the upper end of or above these ranges. The full breakdown of per-ton pricing and how to budget for a driveway project provides additional regional context and a project budgeting framework. A complete size-to-price reference that covers all standard driveway grades in one table is also available in the driveway gravel size chart and price per ton guide.
Worked Example: Estimating Total Material Cost for a Standard Driveway
Applying the conversion method to a real project shows how to move from dimensions to a delivered cost estimate. Consider a driveway that is 60 feet long by 12 feet wide, requiring a total gravel depth of 6 inches across all layers, using #57 crushed stone throughout.
Step one: calculate volume in cubic feet. 60 multiplied by 12 gives 720 square feet. Multiply by 0.5 (6 inches expressed as a fraction of a foot) to get 360 cubic feet.
Step two: convert to cubic yards. Divide 360 by 27, giving approximately 13.3 cubic yards.
Step three: convert to tons. Multiply 13.3 by 1.4, giving approximately 18.6 tons.
Step four: add a 10 percent buffer for settlement and wastage. 18.6 multiplied by 1.1 equals approximately 20.5 tons.
Step five: apply the material price. At $30 per ton for #57 stone, 20.5 tons gives a material cost of approximately $615. Adding a delivery fee of $100 brings the total to around $715 for materials and delivery on this size of project.
If the supplier quotes in cubic yards at $45 per cubic yard, the same calculation gives 14.7 cubic yards (13.3 plus 10 percent) multiplied by $45, totalling approximately $660 plus delivery. Converting the per-cubic-yard price to a per-ton equivalent, $45 divided by 1.4 gives $32.14 per ton, confirming that the cubic yard quote is marginally more expensive than the $30 per ton alternative in this example.
For guidance on how layer structure affects total material volumes, the crushed stone base and subbase specs guide covers recommended depths and material choices for each layer. The complete installation sequence is covered in the gravel driveway installation guide.
When Volume-Based Quoting Can Mislead
Volume-based pricing is sometimes used in ways that obscure the true cost of a material, particularly for lightweight or lower-density grades. Because a cubic yard of pea gravel weighs less than a cubic yard of crusher run, a supplier charging the same price per cubic yard for both materials is effectively charging more per ton for the denser product. For homeowners comparing structural and decorative grades, the only fair comparison is per ton after density adjustment, or per unit of coverage area at a specified depth.
A related issue arises with wet versus dry material. Wet gravel is heavier than dry gravel of the same volume, so a ton of wet material occupies a smaller volume than a ton of dry material at the same grade. If you calculate your order based on dry density figures and receive wet material from the quarry, you may receive slightly less volume than expected. This discrepancy is usually minor but worth understanding when checking delivery accuracy on large orders.
Delivery: The Fixed Cost That Changes the Equation
For most residential driveway projects, the delivery fee is a fixed cost that does not scale proportionally with order size up to the truck’s capacity. A standard aggregate truck carries 10 to 14 tons, and the delivery fee for one truck is typically $50 to $150 regardless of whether it is carrying 8 tons or 13 tons. This means the cost per ton for delivery drops substantially as order size approaches truck capacity.
On a small project requiring only 5 tons, a $100 delivery fee adds $20 per ton to the effective material cost. On a larger project requiring 12 tons on the same truck with the same delivery fee, the delivery surcharge falls to around $8 per ton. Consolidating material orders to fill a truck as efficiently as possible, rather than splitting into multiple smaller deliveries, is one of the most reliable ways to reduce total project cost. Full guidance on delivery fee structures and how to minimize them is available in the driveway gravel delivery fees and minimums guide.
Practical Tips for Ordering Gravel Accurately
Several straightforward practices reduce the risk of ordering errors when working across different pricing units. Always measure your driveway dimensions before contacting suppliers rather than estimating, since small errors in length or width compound significantly when converted to tonnage. Record your calculations and share them with the supplier so they can sense-check your figures before dispatching a load. Ask each supplier for both the per-ton and per-cubic-yard price plus the density of the specific material, which gives you everything needed to verify conversions independently.
When ordering for a layered driveway with different grades in each layer, calculate the required tonnage for each layer separately using the appropriate density for each grade. Mixing density factors across layers is a common source of underestimation, particularly when the sub-base and surface layers use materials with meaningfully different densities. The best crushed stone for driveways guide provides grade-specific guidance that supports these layer-by-layer calculations.
FAQ
How many cubic yards are in a ton of gravel?
For most crushed stone and gravel grades, one ton is equivalent to approximately 0.67 to 0.74 cubic yards. The exact figure depends on the material’s bulk density. Standard crushed stone such as #57 or #67 has a bulk density of around 1.4 to 1.5 tons per cubic yard, so dividing 1 by 1.4 gives roughly 0.71 cubic yards per ton. Lighter materials like pea gravel or dry sand sit toward the lower end of that density range, while wet or heavily compacted material can be denser.
Is it cheaper to buy gravel by the ton or by the cubic yard?
Neither unit is inherently cheaper: the price per ton and the price per cubic yard are simply two ways of expressing the same cost, converted through the material’s density. What matters is that you convert both to the same unit before comparing quotes. A supplier quoting $35 per cubic yard for material with a density of 1.4 tons per cubic yard is effectively charging $25 per ton. Requesting all quotes in the same unit, or converting them yourself, is the only reliable way to compare prices across suppliers.
How much does a cubic yard of gravel cost in 2026?
In 2026, a cubic yard of standard driveway gravel such as #57 crushed stone typically costs between $27 and $60 at the quarry before delivery. Budget materials such as crusher run or recycled concrete aggregate sit at the lower end, from around $15 to $35 per cubic yard. Decorative grades such as washed pea gravel or coloured stone can reach $70 to $110 per cubic yard. Delivery adds a flat fee that commonly ranges from $50 to $150 per load, making it economical to order larger quantities in a single trip where possible.
How do I convert cubic yards to tons for a gravel order?
To convert cubic yards to tons, multiply the number of cubic yards by the material’s bulk density in tons per cubic yard. For most crushed stone grades, use a density factor of 1.4. So 10 cubic yards multiplied by 1.4 equals 14 tons. For pea gravel, use a slightly lower factor of around 1.35. For recycled concrete or asphalt millings, use approximately 1.25 to 1.35 depending on the source material. When in doubt, ask your supplier for the specific density of the material you are ordering.
Why do some gravel suppliers price by ton and others by cubic yard?
Pricing convention varies by region and by supplier type. Quarries and bulk aggregate producers most commonly price by ton because they weigh loads on certified truck scales, making weight the most accurate and auditable measure. Landscaping and garden supply retailers often price by cubic yard or bag because volume is easier for homeowners to visualise and relate to coverage area. Neither method is more accurate than the other when the correct density conversion is applied, but comparing quotes without converting to a common unit can lead to significant errors in cost estimation.
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