Driveway & Paving Calculators
Plan your driveway or parking area with accurate material estimates. Our paving calculators convert dimensions and thickness into tons of asphalt — and our guides help you compare asphalt and concrete. Find the tools and comparisons below.
Driveway & Paving calculators
What you can estimate
- Tons of hot-mix asphalt
- Paved area and volume
- Coverage at 2–4 inch thickness
- Material cost per ton
How to estimate asphalt tonnage
Asphalt is ordered by the ton, so a driveway estimate is really a weight calculation. Find the volume by multiplying length × width × thickness in feet (3 inches is 0.25 ft), multiply that by the density of hot-mix asphalt — about 145 pounds per cubic foot — and divide by 2,000 to convert pounds to tons. A 50 × 12 ft driveway at 3 inches works out to roughly 11 tons.
Our paving calculators handle the conversion and add an installed-cost range, so you can budget a driveway or parking area and compare it against concrete before committing.
Driveway material comparison
Asphalt, concrete, and gravel each hit a different balance of upfront cost, lifespan, and maintenance. The right choice depends on your climate and budget.
| Material | Cost / ft² (installed) | Lifespan | Maintenance |
|---|---|---|---|
| Gravel | $1 – $3 | Ongoing | Regrade & top up yearly |
| Asphalt | $3 – $7 | 15–20 yrs | Reseal every 3–5 yrs |
| Concrete | $4 – $8 | 30+ yrs | Low, occasional sealing |
Paving tips
- A compacted gravel base is as important as the asphalt thickness itself.
- Use 2–3 inches of asphalt for cars, 4+ inches for heavy vehicles.
- Seal a new asphalt driveway after the first year, then every few years.
- Grade for drainage — standing water shortens any driveway's life.