How much area does 1 ton of asphalt millings cover?

Coverage depends on compacted depth and actual material density. At 140 lb/ft³: 2 inches deep covers about 80–100 sq ft per ton, 3 inches covers about 55–65 sq ft per ton, and 4 inches covers about 40–50 sq ft per ton. For a 500 sq ft driveway at 3 inches, expect roughly 8–9 tons.

What is RAP density per cubic yard?

RAP (reclaimed asphalt pavement) density varies by moisture content, gradation, and compaction level. This calculator uses 140 lb/ft³ for compacted millings and 120 lb/ft³ for loose millings as practical planning baselines. Compacted RAP equals approximately 1.89 tons per cubic yard; loose RAP approximately 1.62 tons per cubic yard.

How Many Tons of Asphalt Millings Do I Need? (Free Calculator)

Material condition

Density adjusts automatically based on condition.

Length (ft)

Width (ft)

Depth (inches)

Typical: 2–3 in residential, 4–6 in heavy use.

Depth presets:

Asphalt Driveway Planning Checklist

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Asphalt Millings Calculator — Tons, Yards & Coverage Guide

This calculator estimates how much recycled asphalt pavement (RAP) you need for driveways, road base, resurfacing, and parking areas. Enter your project dimensions to get cubic feet, cubic yards, and total tons based on whether your material is loose or compacted.

The formula is straightforward: volume in cubic feet × density ÷ 2,000 = tons. The only variable that changes between projects is the density assumption — compacted millings run around 140 lb/ft³, loose millings around 120 lb/ft³. Your supplier may have a local figure; use that for final ordering.

Coverage Per Ton by Depth

Compacted depth	Coverage per ton	Tons for 500 sq ft	Tons for 1,000 sq ft
2 inches	80–100 sq ft	5–6 tons	10–12 tons
3 inches	55–65 sq ft	8–9 tons	15–18 tons
4 inches	40–50 sq ft	10–12 tons	20–25 tons
6 inches	27–33 sq ft	15–18 tons	30–37 tons

Based on 140 lb/ft³ compacted density. Add 5–10% for waste and uneven terrain.

Density Reference

Condition	Density	Tons per yd³	Notes
Compacted RAP	140 lb/ft³	1.89 tons	Default — most residential projects
Loose millings	120 lb/ft³	1.62 tons	Pre-compaction or freshly delivered

Actual density varies with moisture content, gradation, and source material. Confirm with your supplier before ordering.

Why use asphalt millings?

Millings are the ground-up material from old asphalt surfaces. They're cheaper than fresh hot mix, widely available from paving contractors and recycling yards, and compact into a stable surface that works well for driveways, farm lanes, parking areas, and rural roads. The residual bitumen in the material binds over time when compacted and exposed to heat, giving the surface some self-healing properties.

Depth guide by application

For light residential vehicles, 2–3 inches compacted is the standard. For RVs, work trucks, or farm equipment, 4–6 inches gives a more stable base. Always compact in lifts no deeper than 3 inches at a time, thicker single-pass compaction leaves soft spots in the middle of the layer. On soft or clay soil, a geotextile fabric under the millings will prevent them from working down into the subgrade over time.

Frequently Asked Questions

Use the calculator above — enter your length, width, and depth to get an instant ton estimate. For a quick manual check: multiply length × width × (depth in feet) for cubic feet, then multiply by 140 (compacted density) and divide by 2,000. For example, a 50×10 ft driveway at 3 inches: 50 × 10 × 0.25 × 140 / 2,000 = 8.75 tons. Add 5–10% for settling and uneven ground.

At 140 lb/ft³ (compacted RAP), one cubic yard (27 ft³) weighs about 3,780 lb — roughly 1.89 tons. Loose millings at 120 lb/ft³ weigh about 3,240 lb per cubic yard, or 1.62 tons. If your supplier has a local density figure, use that for final ordering as actual density varies with moisture and gradation.

Coverage depends on compacted depth. At 140 lb/ft³: 2 inches covers 80–100 sq ft per ton, 3 inches covers 55–65 sq ft per ton, 4 inches covers 40–50 sq ft per ton. For a 500 sq ft driveway at 3 inches, expect roughly 8–9 tons. See the coverage table above for more combinations.

RAP density varies by moisture, gradation, and compaction. This calculator uses 140 lb/ft³ for compacted millings (1.89 tons/yd³) and 120 lb/ft³ for loose millings (1.62 tons/yd³) as practical planning baselines. These are reasonable defaults for most residential projects, check with your supplier for their specific material.

For residential driveways with light vehicle traffic, 2–3 inches compacted is typical. For heavier vehicles like RVs, work trucks, or farm equipment, 4–6 inches is more appropriate depending on base conditions and drainage. Always compact in lifts no thicker than 3 inches at a time for best density throughout the layer.

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Accuracy & Review

Reviewed by: Dave Whitaker

Dave is a second-generation paving contractor specialising in asphalt compaction, lift thickness, and milling yields for driveways and small parking lots. He reviewed the density assumptions, calculation logic, and practical estimating guidance used in this calculator.

Last updated: Feb 12, 2026

See: Methodology · Data Sources · Review Board

Disclaimer: Estimates are for general planning only and should not be used as paving or engineering specifications. Actual quantities may vary based on compaction, base preparation, climate, and traffic load.

See Methodology and Data Sources for calculation assumptions.

Asphalt Milling Calculator