Asphalt Milling Calculator – Accurate Volume & Weight Estimates
Our asphalt milling calculator makes it easy to estimate the amount of recycled asphalt (RAP) needed for your project. Whether you're working on a driveway, road base, or resurfacing job, millings are a cost-effective and eco-friendly material that compacts well and performs reliably.
How This Asphalt Millings Calculator Works
- Calculates total volume in cubic feet
- Converts volume to cubic yards and tons
- Uses a standard density of 140 lb/ft³ for compacted RAP
Simply enter the length, width, and depth of your project area to get quick results. This tool is ideal for homeowners, landscapers, and contractors planning resurfacing or base layer jobs.
Asphalt Milling Formula
(Length × Width × Depth in feet) ÷ 27 = Cubic Yards
Volume in ft³ × 140 ÷ 2000 = Tons
Helpful Tips
- Add 5–10% extra to account for settling and uneven terrain
- Double-check your depth measurement after compaction
- Always confirm with your supplier for material density
Recycled asphalt is a great choice for cost savings and durability. Use our asphalt milling calculator to plan smarter, save money, and avoid surprises on your next project.
Why Use Recycled Asphalt (Millings)?
Asphalt millings are a sustainable, budget-friendly alternative to fresh hot mix asphalt. They are created when existing asphalt surfaces are ground up and reused, offering the same durability and structure for a fraction of the cost.
- Environmentally responsible – reduces landfill waste
- Lower cost than virgin asphalt materials
- Good compaction and drainage properties
- Ideal for rural roads, driveways, farm lanes, and parking lots
Common Projects That Use Asphalt Millings
- Driveway resurfacing and restoration
- Gravel driveway reinforcement
- Base layers for new asphalt paving
- Rural roads and unpaved trail upgrades
- Commercial yards and farm access roads
Typical Compaction Depths
The depth of millings you need depends on the application:
- 2–3 inches: Light vehicle traffic, residential driveways
- 4–6 inches: Heavier use such as RVs or work trucks
- 6+ inches: High-traffic or commercial applications
Pro Tips for Asphalt Milling Projects
- Use a roller or compactor after spreading for best results
- Install landscape edging to contain the material over time
- Avoid using during heavy rain—millings need dry compaction
- Consider adding a binding agent or sealant for dust control and longevity
Frequently Asked Questions
Q: How much does a ton of asphalt millings cover?
A: One ton typically covers 80–100 square feet at a 2-inch depth.
Q: Do I need to seal asphalt millings?
A: Not always, but sealing can help reduce dust and extend lifespan, especially in wet climates.
Q: Are asphalt millings good for drainage?
A: Yes, millings compact tightly but still allow water to drain through—great for erosion control.
Q: What’s the difference between asphalt millings and gravel?
A: Millings bind together naturally over time and resist washout, whereas gravel shifts more easily.
Related Asphalt & Paving Calculators
Accuracy & Review
Reviewed by: Dave Whitaker
Dave is a second-generation paving contractor focusing on asphalt compaction, lift thickness, and milling yields for driveways and small parking lots. He reviewed the assumptions, calculation logic, and practical estimating guidance used in this calculator.
Last updated:
See: Methodology · Data Sources · Review Board
Important Estimate Disclaimer
The results provided by this calculator are intended as general estimates only and should not be considered precise engineering measurements. Actual material requirements, costs, and quantities can vary significantly based on site conditions, local building codes, soil type, reinforcement requirements, climate exposure, and the intended use of your project.
These calculators are designed to help you plan and budget your project more effectively, but they do not replace professional advice from a qualified contractor, engineer, or building inspector. Always verify your calculations and assumptions with trained professionals before placing material orders or commencing construction.
For more information on the assumptions, formulas, and data used in these tools, see our Data Sources and Methodology pages.
Material estimates, cost figures, and volume calculations are approximate and may not reflect your actual requirements. Always double-check dimensions and project-specific needs, and consider adding a contingency allowance for waste, over-excavation, and unforeseen conditions.
If you are unsure about any aspect of your project — including structural requirements, reinforcement needs, drainage, or load-bearing capacity — consult with a licensed professional before proceeding.