Asphalt Calculator — Tonnage & Cost Estimator

How to use this asphalt calculator

Enter the length and width of your paving area in feet, then the thickness in inches. The calculator returns tons of hot-mix asphalt needed (the industry's standard ordering unit), cubic yards, cubic feet, and an estimated cost range based on typical US pricing.

Asphalt is priced and sold by the ton. One cubic yard of compacted hot-mix asphalt weighs about 4,050 lbs, or roughly 2.025 tons — that's the density our calculator uses. Loose (uncompacted) asphalt weighs less; always get quotes based on compacted tonnage.

Asphalt thickness guidelines

Thickness depends heavily on use. Getting this wrong is the #1 reason driveways fail within 5 years:

• Residential driveway (standard): 2–3 inches of asphalt over 4–8 inches of compacted gravel base
• Residential driveway (heavy vehicles): 3–4 inches over 8 inches of base
• Parking lots (light use): 3 inches over 6 inches of base
• Parking lots (commercial / trucks): 4–5 inches over 8–12 inches of base
• Road repairs / overlays: 1.5–2 inches
• Bike paths / walking paths: 1.5–2 inches over 4 inches of base

Skimping on thickness is a false economy. A 2-inch driveway will crack and develop potholes in 3–5 years; a 3-inch driveway lasts 15–20 years with proper sealcoating.

Why base layer matters as much as asphalt

Asphalt itself is a wear surface — the real structural work happens in the base layer beneath it. A properly installed asphalt driveway has:

1. Compacted subsoil (the native earth, graded and rolled)
2. Geotextile fabric (optional but increases lifespan)
3. 6–8 inches of compacted crushed stone base (#2 or #3 stone)
4. 2–3 inches of hot-mix asphalt

Skipping base preparation or using inadequate stone depth is why cheap driveways fail. Budget roughly 30–40% of your total project cost for base prep and grading.

Asphalt cost breakdown

Material and labor costs for hot-mix asphalt in the US (as of 2026):

• Hot-mix asphalt material only: $100–$200 per ton delivered
• Full installation (DIY base, pro paving): $3–$7 per sq ft
• Full installation (pro base and paving): $7–$13 per sq ft
• Sealcoating: $0.15–$0.25 per sq ft, every 2–3 years

Example driveway cost: for a 20 × 40 foot driveway (800 sq ft) at 3 inches thick, you need about 12 tons of asphalt. Material alone: $1,200–$2,400. Full professional install: $5,600–$10,400.

DIY asphalt is not recommended for most homeowners — hot-mix needs to be installed quickly (within 30–60 minutes of delivery) and rolled properly for the right density. Getting it wrong usually means tearing it out and starting over.

When to repave vs. resurface vs. sealcoat

• Sealcoat only: driveway is structurally sound, no cracks wider than 1/4 inch, just looks faded. Every 2–3 years.
• Patch and sealcoat: a few cracks or small potholes, otherwise sound surface. $200–$800 total.
• Resurface (overlay): driveway has multiple cracks but base is still solid. 1.5–2 inch asphalt layer over existing. $2–$4 per sq ft.
• Full repave: base is failing, deep cracks, drainage issues, or driveway is 20+ years old. Tear out and rebuild. $7–$13 per sq ft.

Our calculator helps you estimate any of these — for resurfacing, use 1.5–2 inches thickness; for full repave, use 3 inches.

Seasonal timing matters

Hot-mix asphalt needs to be laid when the ground temperature is above 40°F and rising. In most of the US, that means April through October. Laying asphalt in cold weather causes premature cracking because the mix cools too quickly before full compaction.

If you're getting quotes in late fall, ask the contractor whether they're comfortable with the current ground temperature or if they recommend waiting until spring. A good contractor will be honest about this.