Online Asphalt CalculatorAsphalt Millings Calculator
Millings — recycled, crushed asphalt — are one of the cheapest ways to surface a driveway. This recycled asphalt calculator estimates tons and material cost per square foot with a millings-specific density; enter your local delivered price for a real number.
Asphalt Millings Calculator
Enter a compacted thickness and your local per-ton price for millings to get the material cost per square foot. Millings compact lighter than new hot mix — the density defaults to a millings planning value, and every assumption stays visible.
Density defaults to 110 lb/ft³, a planning value for compacted recycled asphalt — lighter than virgin hot mix (~145 lb/ft³). Confirm the actual compacted density with your supplier.
Enter your local millings price ($/short ton) to calculate the cost per square foot. Millings are cheap — often $10–20 per ton — so ask for the delivered price; trucking can cost as much as the material.
Typical US price ranges (planning reference): Recycled asphalt / millings (material) $10–$20 per short ton
| Basis | Typical range | What it covers |
|---|---|---|
| Recycled asphalt / millings (material) | $10–$20 per short ton | Recycled asphalt millings at the plant, much cheaper than virgin hot mix; varies by region and screening quality. Delivery often costs more than the material itself. |
Broad US planning bands checked 2026-08-17. Not a quote — prices vary by region, mix, volume and season. See asphalt cost per ton and data sources.
What are asphalt millings?
Asphalt millings — also called recycled asphalt, crushed asphalt, or RAP (reclaimed asphalt pavement) — are the pieces of old asphalt pavement ground up when a road or driveway is milled. Instead of going to a landfill, the crushed material is screened and reused as a driveway surface or a base layer. Because the original aggregate and the aged binder are still in it, millings compact into a firm surface at a small fraction of the cost of new hot mix.
Two things separate millings from new asphalt in a calculation. The compacted density is lighter — this calculator defaults to a 110 lb/ft³ planning value rather than the 145 lb/ft³ used for virgin hot mix — and the price per ton is far lower. Use our asphalt calculator if you're actually ordering new hot mix, and the cost per square foot calculator for hot-mix pricing.
Asphalt millings cost at a glance
At the 110 lb/ft³ planning density, a 5% waste allowance, and an example material price of $15 per short ton, the per-area figures are:
| Compacted thickness | Order quantity | Material cost |
|---|---|---|
| 1.5 in | 0.72 short tons / 100 sq ft | $0.11 / sq ft |
| 2 in | 0.96 short tons / 100 sq ft | $0.14 / sq ft |
| 3 in | 1.44 short tons / 100 sq ft | $0.22 / sq ft |
| 4 in | 1.92 short tons / 100 sq ft | $0.29 / sq ft |
The headline number is how cheap the material is: a 600 sq ft driveway at 3 inches needs about 8.7 short tons of millings — roughly $130 of material at $15 per ton. The catch is that millings cost so little per ton that delivery often costs as much as or more than the material itself, so always get a delivered price. Recycled asphalt commonly runs $10–20 per short ton (dated US planning band); replace the example price with your local quote.
When millings make sense — and when they don't
- Good fit: long or rural driveways where new asphalt is cost-prohibitive, budget surfaces, and base layers under a future asphalt overlay.
- Trade-offs: millings never harden into a solid slab like new hot mix. They stay a flexible, compacted surface that can loosen at the edges and may need occasional regrading.
- Compaction matters: millings must be spread in lifts and rolled to knit together; without compaction they behave like loose gravel.
For the full installed picture on a new-asphalt job, see the material vs installed cost guide.
Millings tonnage by driveway size
Pre-computed order quantities at the 110 lb/ft³ compacted planning density with 5% waste — find your footprint:
| Footprint | 2 in | 3 in | 4 in |
|---|---|---|---|
| 12 × 20 ft (240 sq ft) | 2.3 t | 3.5 t | 4.6 t |
| 20 × 20 ft (400 sq ft) | 3.8 t | 5.8 t | 7.7 t |
| 20 × 30 ft (600 sq ft) | 5.8 t | 8.7 t | 11.6 t |
| 24 × 40 ft (960 sq ft) | 9.2 t | 13.9 t | 18.5 t |
Basis: compacted density 110 lb/ft³, 5% waste allowance, US short tons. Some published guides quote loose (uncompacted) densities for millings without saying so — a loose figure makes the tonnage look larger. Confirm which basis your supplier uses before comparing prices.
How to get millings free or cheap
Because millings are a byproduct, the source matters more than the sticker price. Published guides report four channels, from cheapest up:
- Paving contractors' leftovers — crews milling a job nearby often have RAP to offload; sometimes free if you take a full load and handle it promptly. Ask what else is in it: you want pure asphalt millings, not a mix with concrete or soil.
- County or state road projects — milling contracts generate large volumes; some DOTs and counties give away or cheaply sell the reclaimed material.
- Online marketplaces — Craigslist and Facebook Marketplace listings are common; expect to arrange your own hauling.
- Asphalt plants and gravel yards — the reliable channel: screened, consistent material at the $10–20 per ton planning band, with delivery quoted separately.
Whatever the source, price the delivered total, not the material: 8.7 tons at $15 per ton is only about $130 of material, but hauling it can add $100–200 — delivery can cost more than the millings themselves.
Frequently asked questions
Is recycled asphalt the same thing as millings?
Yes — recycled asphalt, crushed asphalt, RAP (reclaimed asphalt pavement) and millings all describe the same material: old pavement ground up for reuse. Searching for a recycled asphalt calculator lands you in the right place; just note the lighter 110 lb/ft³ compacted density this page uses, and confirm the actual figure with your supplier if they give you one.
How much do asphalt millings cost?
Recycled asphalt commonly runs $10–20 per short ton for the material (our dated US planning band), far below the $40+ per ton for new hot mix. Because the material is so cheap, trucking often costs as much as or more than the millings — ask for a delivered price per ton, not just the plant price.
How many tons of millings do I need for a driveway?
Multiply area × compacted thickness × density, then add a waste allowance. A 600 sq ft driveway at 3 inches needs about 8.7 short tons at the 110 lb/ft³ millings density. Enter your exact area and thickness in the calculator above for a project-specific number.
Do asphalt millings harden?
Millings compact into a firm, stable surface, and the residual aged binder can partially re-bond in warm weather, so the surface firms up over time. But millings never harden into a solid slab like new hot-mix asphalt — they remain a flexible, compacted surface that can loosen at the edges.
Are millings better than gravel for a driveway?
Millings compact much harder than loose gravel and resist ruts and washboarding better, because the residual binder helps the pieces knit together. Gravel stays loose and needs periodic regrading. Millings cost more than gravel but far less than new asphalt.
How thick should an asphalt millings driveway be?
Typically 2–4 inches compacted for a residential driveway — 2 inches over a good existing base, 3–4 inches on bare or soft ground, and more for heavy vehicles. Spread and compact in lifts for the best result.
Do millings drain well?
Millings are not a sealed surface, so water passes through better than on solid asphalt, though the fine particles make them less permeable than loose gravel. A crowned, well-graded surface sheds water best.
Can you pave new asphalt over millings?
Yes — well-compacted millings make a solid base for a new asphalt overlay, and many contractors mill the old surface and reuse it underneath. Confirm the base is stable and compacted before paving over it.
Related calculators and guides
Ordering new hot mix instead, or pricing a full installed job? Start from these.