Asphalt Calculator - Free Tonnage Estimator

Calculate how much asphalt you need in seconds. Get accurate tonnage estimates for driveways, parking lots, and road projects. Used by 10,000+ contractors monthly.

✓ 145 lb/ft³ density ✓ Industry standard formula ✓ Mobile friendly

Calculate Asphalt Tonnage

Measure the longest side
Measure the shortest side
2-3" for driveways, 4-6" for roads

Common Asphalt Calculator Questions

How many tons of asphalt per square foot?

For a 2-inch thick layer, you need about 0.012 tons per square foot. This equals roughly 24 pounds of asphalt per square foot. Thicker layers require proportionally more.

What thickness of asphalt for driveway?

Most residential driveways need 2 to 3 inches of asphalt. Light traffic areas can use 2 inches. Heavier vehicles or commercial driveways need 3 to 4 inches.

How to calculate asphalt tonnage manually?

Multiply length × width × (thickness in inches ÷ 12) to get cubic feet. Then multiply by 145 (asphalt density) and divide by 2000 to get tons.

Understanding Asphalt Calculations

Standard Asphalt Density

Hot mix asphalt weighs 145 pounds per cubic foot. This industry standard helps contractors estimate tonnage accurately across different projects.

Project Types & Thickness

Driveways typically use 2-3 inches. Parking lots need 3-4 inches. Roads require 4-6 inches depending on traffic load and soil conditions.

Cost Factors

Asphalt costs vary from $100-$200 per ton nationwide. Location, quantity, and seasonal demand affect pricing. Summer months often see higher rates.

Asphalt vs Concrete Calculator Comparison

Factor Asphalt Concrete
Cost per sq ft $3-7 $4-8
Installation time 1-2 days 3-7 days
Lifespan 15-20 years 25-30 years

Compare detailed costs for your project →

Asphalt Calculator Tips

Accurate Measurements

Measure each section separately for irregular shapes. Round measurements to the nearest half-foot for practical ordering.

Add Waste Factor

Order 10% extra asphalt to account for compaction, spillage, and minor measurement errors. Better safe than short.

Seasonal Pricing

Spring and summer see peak prices. Fall projects often cost 15-20% less due to reduced demand.

Why Contractors Use Our Calculator

Industry Formula

Uses NAPA standard 145 lb/ft³ density for accurate estimates

Mobile Optimized

Calculate on-site from your phone or tablet

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