How to use this asphalt millings calculator
- Measure each rectangular part of your driveway in feet; add the sections together, or enter the total area if you already have it.
- Enter the finished, compacted layer thickness in inches. A loose spread height is not the same measurement.
- Use a compacted density that matches your RAP and project. If you have no reliable density, clear the box: the calculator still shows geometric volume without pretending to know the tonnage.
- Add a site-specific handling allowance, then enter your supplier's minimum and purchase increment. The order rounds upward only after the allowance and minimum are considered.
- If quoted by the ton, enter price per US short ton. For loose cubic-yard quotations, provide compatible compacted and loose density figures and confirm their mass/moisture basis. Add the quoted delivery fee and truck payload if available.
How many tons of asphalt millings do I need?
For a finished layer, multiply the area in square feet by the finished depth in feet. This gives compacted cubic feet. Multiply by a compatible compacted density in pounds per cubic foot, then divide by 2,000 to get US short tons. That is a material-mass estimate, not automatically a count of loose truck yards.
Formula: short tons = area (ft²) × depth (in) ÷ 12 × compacted density (lb/ft³) ÷ 2,000.
Worked driveway example
Consider a 40 ft × 12 ft driveway with a planned 3-inch finished layer. Area = 480 ft². Finished volume = 480 × 3/12 = 120 ft³, or 120/27 = 4.44 compacted yd³. At an illustrative 125 lb/ft³ compacted density, estimated weight is 120 × 125 = 15,000 lb = 7.5 US short tons. It is not a universal millings density or a supplier quote.
For a separate, illustrative 8% handling allowance, unrounded demand becomes 7.5 × 1.08 = 8.1 short tons. If the yard rounds up to half-ton increments and has no larger minimum, the purchase amount is 8.5 short tons. At an illustrative $28 per short ton, the material subtotal is $238; a $95 delivery fee brings the total to $333 before taxes and other charges. Confirm prices, limits and moisture conditions directly.
Asphalt millings: cubic yards to tons
A cubic yard is 27 cubic feet, but it has no fixed weight. Multiply the volume appropriate to that material state by its matching bulk density to get pounds. FHWA describes milled/processed RAP unit weights of 120–140 lb/ft³ and separately reports RAP compacted maximum dry densities of 100–125 lb/ft³. Those are not one interchangeable conversion table. Gradation, aggregate source and moisture matter. See FHWA's RAP material description.
If the supplier quotes delivered loose cubic yards, ask for their loose density and verify whether its wet/dry mass basis is compatible with your finished-density assumption. The calculator intentionally leaves the loose-yard output blank until that information is entered and confirmed.
Loose vs. compacted asphalt millings
The planned 3-inch depth describes the material after rolling. A loose pile or a freshly spread layer contains different void spaces and may have different water content. A fixed 15% or 25% increase in volume is not a scientifically universal way to convert all RAP stockpiles to compacted surfaces. A supplier or pavement contractor can advise how their particular gradation behaves and whether a measured loose-to-finished factor is appropriate.
Delivered tons and finished dimensions also have a moisture-basis problem: a dry compacted density cannot predict the weight of water on a wet truck. Request measured project/supplier densities, specifications and weighbridge information if the order is large.
Estimating millings for a driveway
For a widened entrance, turn-around or parking pad, split the job into rectangles and add their areas. Keep each section at the same intended finished depth when using this tool; if your sections require different depths, calculate them separately. Confirm grading, drainage, foundation suitability, compaction equipment, environmental or local permit requirements and finished elevation before ordering.
Recycled asphalt millings are material reclaimed from existing pavement and can be screened or crushed; they are not fresh hot-mix asphalt. This page estimates reclaimed material for a proposed layer. It does not calculate milling/removal contractor rates or guarantee that a compacted RAP driveway meets an engineering specification.
How much area does one ton cover?
Reverse the formula: square feet per US short ton = 2,000 ÷ (finished depth in feet × compacted density in lb/ft³). At 125 lb/ft³ and 3 inches finished depth, one US short ton covers 2,000 ÷ (0.25 × 125) = 64 square feet without additional allowance. The same ton covers less at greater depth; coverage changes when you choose a different density.
Calculating asphalt millings cost
Obtain a per-short-ton or per-loose-cubic-yard price, minimum order, purchase increment and total delivery charge from your supplier. The calculator first determines required material, applies a single user-chosen allowance, respects the supplier minimum, then rounds up to the sales increment. Material cost is purchased quantity × quoted unit price; delivery is added separately. Truckloads use the purchased weight and the payload entered by the user. This excludes taxes, labor, equipment rental and site preparation.
Common mistakes to avoid
- Entering 3 inches as 3 feet rather than 3/12 foot.
- Confusing a US short ton (2,000 lb) with a metric tonne (about 2,204.62 lb).
- Using a wet loose-stockpile unit weight for a dry compacted finished layer.
- Adding an arbitrary compaction percentage on top of a mass estimate, then adding it again as "waste".
- Assuming delivered material has the same moisture and gradation as the test sample.
- Forgetting supplier minimums, rounding increments, separate delivery charges or actual truck payload limits.
Frequently asked questions
Can I order millings without knowing the compacted density?
You can measure the area and finished design volume, but cannot reliably turn that into tons without a compatible density or a job-specific purchasing factor. Ask the material yard or paving contractor before placing an order.
Is a cubic yard of asphalt millings always 1.5 tons?
No. A tons-per-yard ratio only makes sense for a specified RAP product in a specified loose or compacted condition. Supplier yard conversions should not be applied automatically to finished compacted dimensions.
How many truckloads will I need?
Divide the ordered short tons by the hauler's permitted payload and round upward to a whole trip. The result excludes route, axle, body-volume or scheduling limits. Ask the delivery company to confirm them.
Does this calculate asphalt pavement milling removal?
No. Removing an existing paved surface is a different contractor service with different waste handling, depth and equipment considerations. This calculator estimates reclaimed material you plan to buy for a driveway or pad.
Technical sources and assumptions
Research checked November 4, 2026. Density values are historical FHWA guidance, not certified for a specific load or material. Source: Federal Highway Administration, FHWA-RD-97-148, Reclaimed Asphalt Pavement — Material Description (RAP definition, aggregate and moisture effects, milled/processed unit weight and maximum dry compacted density). Compare density data only when its physical state and water content are compatible. Always obtain a current supplier quotation and local construction guidance.
Explore StonePlan Tools and its material calculators. Future related pages on drain rock, crushed limestone and loose/compacted RAP will be linked only after those pages are available.