Paving Calculator: Plan Your Full Asphalt Project End-to-End
Most asphalt calculators only solve one line — tons of mix. This paving calculator plans the whole project: base stone, asphalt surface, sealcoat, and striping. Get a budget you can compare to contractor quotes — not just a tonnage number.
This page answers:
- How much asphalt + base + sealer for my paving project?
- What's a realistic 2026 budget for the whole job?
- What 5 steps does a paving project actually involve?
Paving project calculator
Companion estimates: base stone, sealer, and striping
The asphalt calculator above sizes your surface course. Use these companion ratios to round out the project:
| Component | Spec | Quantity | 2026 cost (US avg) |
|---|---|---|---|
| Subgrade strip (8" deep) | Excavator, haul-off | 15 cu yd | $300–$600 |
| Crushed stone base | 4–6", #57 grade | ~6 tons | $120–$200 |
| Geotextile (optional) | 4 oz non-woven | 600 sq ft | $60–$120 |
| Hot mix asphalt surface | 3", 145 lb/ft³ | ~12 tons | $1,080–$1,680 |
| Compaction labor | 10-ton roller | 0.5 day | $200–$400 |
| Sealcoat (year 1+) | 2 coats | 17 gal | $120–$160 DIY · $240–$400 pro |
| Striping (lots only) | 4" line | n/a residential | $0.40–$0.80/linear ft |
Excavation and haul-off are the most variable cost — clay or rocky soil triples this line. Confirm with site visit before any contractor commits to a flat per-sq-ft price.
The 5 steps in any paving project
- Site survey & measurement: Capture length × width and any irregular sections (L-shape, curves). Mark utility locations. Photograph existing surface failure pattern (alligator cracking = base failure, rutting = compaction failure).
- Subgrade preparation: Excavate to 8–12 inches below finished surface. Roll firm, test with proof-roll if commercial. Address soft spots with stabilization (cement-treated base, lime, or excavate deeper). See our base guide for soil-by-soil specs.
- Base course: Place 4–6 inches (residential) or 6–12 inches (commercial) of compacted crushed stone — typically #57 grade. Compact in 2-inch lifts with vibratory roller. Verify with proof-roll or dynamic cone penetrometer.
- Asphalt placement: Pave at 250–275°F mat temperature. Single 2–3 inch lift residential; commercial usually 2-lift (binder + surface). Compact to 92–96% of theoretical maximum density per Marshall or Superpave spec.
- Finish & protect: Edge details, expansion joints if abutting concrete, sealcoat after 6–12 months cure, striping for parking lots within 14 days of pour. Plan first sealcoat at year 1, then every 2–3 years.
3 sizing rules every paving project follows
- Base depth ≥ surface depth × 1.5: 3" surface = 4.5–6" minimum stone base. Going thinner causes alligator cracking within 5 years.
- Drainage slope 1.5–2%: Driveways tilt away from the house at 1.5% grade minimum. Parking lots have a 1–2% cross-fall to drain inlets. No slope = puddles + winter freeze damage.
- Edge restraint within 24 hours: Asphalt edges roll without restraint. Either compact a 3:1 stone wedge against the edge, or install concrete curb / paver edge before paving. Without restraint, you lose 1–2 inches of usable width to crumble within 2 years.
When this calculator is the right one (vs the more specific tools)
- Use this paving calculator when you're budgeting the whole job — including base, sealer, and striping line items.
- Use the tonnage calculator when you only need a material order quantity for the supplier.
- Use the cost calculator when you want a line-item cost breakdown in USD/CAD/GBP.
- Use the driveway calculator for residential driveways with the repair vs replace decision matrix.
- Use the parking lot calculator for commercial lots with striping and ADA spacing.
The FAQ below has the questions homeowners and small-business owners ask most when planning a first-time paving project.
Paving calculator FAQ
What's a paving calculator vs an asphalt calculator?
An asphalt calculator solves one line item — usually tons of HMA. A paving calculator plans the full project: subgrade prep, base stone, asphalt surface, sealcoat, and striping. Useful for full-job budgeting, not just material orders.
How do I plan a paving project?
Five steps: measure area, decide depth from application, calculate base stone tonnage, calculate asphalt tonnage, then add sealer gallons and striping. The calculator above runs the asphalt math; the companion table covers base, sealer, and striping.
How much base stone do I need under asphalt?
Residential driveways need 4–6 inches of compacted crushed stone (typically #57 or #2 grade) at ~100 lb/ft³ density. Parking lots and roads need 6–12 inches. Verify subgrade firmness — clay soils need deeper base. See our base guide for soil-by-soil specs.
What does a typical paving project cost in 2026?
Residential 600 sq ft driveway: $4–$8/sq ft installed = $2,400–$4,800 total. Commercial 10,000 sq ft parking lot: $3.50–$6/sq ft = $35,000–$60,000. Add 20–30% if base reconstruction or grading is needed.
DIY vs hire a contractor — when does each make sense?
DIY works for sealcoating and small (<500 sq ft) repairs with cold patch. New paving projects need a paver, tandem roller, and source of hot HMA — none of which DIY rents practically. Hire a licensed paving contractor for any job over 500 sq ft of new asphalt.
Best time of year to schedule paving?
April through October when ambient temps stay above 50°F. Most state DOTs prohibit HMA placement below 40°F. Spring (April-May) and fall (September-October) have the best contractor availability and pricing — peak summer is often booked solid by July.
How long does a paving project take?
Residential driveway: 1–2 days for tear-out, base, and pave; 24-48 hours cure before driving. Commercial parking lot: 3–7 days depending on size and base reconstruction. Sealcoating adds another half-day plus 24 hours dry time.