Asphalt Calculator
Estimate the tonnage and cost of asphalt for your driveway or paving project.
Your Project Estimate
Asphalt Needed (Tons)
0.00
Equivalent in Bags (50 lb)
0
Estimated Material Cost
$0
About the Asphalt Calculator
Whether you're paving a new driveway, patching a road, or creating a walkway, our Asphalt Calculator is the perfect tool to help you plan your project. It accurately estimates the total tonnage of asphalt required based on your area's dimensions and desired thickness, ensuring you can budget effectively and order the right amount of material.
Formula Explained
The calculator determines the total weight of asphalt needed with a simple, three-step formula:
- Calculate Volume: First, it finds the total volume of your area (Length × Width × Thickness) in cubic feet or cubic meters.
- Calculate Weight: It then multiplies the volume by the density of asphalt (typically 145 lb/ft³ or 2,322 kg/m³) to find the total weight.
- Convert to Tons/Tonnes: Finally, it converts the total weight into tons (2,000 lb) or metric tonnes (1,000 kg).
How to Get Better Results
For the most accurate asphalt estimate, follow these tips:
Measure After Excavation
For the most accurate depth measurement, measure after the area has been excavated and the sub-base is prepared.
Account for Compaction
Hot mix asphalt compacts when rolled. It's wise to add 5-10% to your final tonnage to ensure you have enough material.
Frequently Asked Questions
How thick should an asphalt driveway be? →
For a standard residential driveway, a compacted thickness of 2 to 3 inches is common. For areas that will support heavier vehicles like RVs or large trucks, a thickness of 4 inches or more is recommended.
How many 50 lb bags of asphalt are in a ton? →
There are 40 bags of 50 lb cold patch asphalt in one US ton (2,000 pounds). Our calculator automatically provides this conversion for you, which is useful for smaller repair projects.
What is the density of asphalt? →
The density of compacted hot mix asphalt is typically around 145 pounds per cubic foot (lb/ft³), or 2,322 kilograms per cubic meter (kg/m³). This value is pre-filled in our calculator but can be adjusted if you have a specific mix design from your supplier.
Is it cheaper to use concrete or asphalt for a driveway? →
Generally, asphalt has a lower upfront installation cost than concrete. However, concrete often has a longer lifespan and may require less maintenance over time. The best choice depends on your budget, climate, and aesthetic preference.
How long does an asphalt driveway last? →
With proper installation and regular maintenance (like sealcoating every 3-5 years), a residential asphalt driveway can last 15 to 20 years, or even longer in moderate climates.