Asphalt Calculator
Estimate Asphalt Volume, Weight, & Cost

Use this free asphalt calculator to estimate the volume and weight of asphalt required for your next project. Whether you’re paving a driveway, parking lot, or road, enter the area dimensions and thickness to calculate the necessary asphalt in cubic feet, tons, pounds, and kilograms. This tool helps contractors, homeowners, and project managers estimate quantities based on standard asphalt density (145 lb/ft³). Quick, accurate, and easy to use—ideal for both residential and commercial paving jobs.

Asphalt Calculator

Enter Project Dimensions to Calculate Asphalt Needed

Enter the length of the surface area to be paved
Enter the width of the surface area to be paved
Enter the thickness/depth of the asphalt layer (typically 2-4 inches for driveways)

How the Asphalt Calculator Works

This tool calculates the asphalt volume and weight needed based on your input: length, width, and thickness of the area. You can choose your preferred unit—feet, meters, yards, etc.—and the calculator will convert your input into cubic feet and estimate weight using standard asphalt density.

Asphalt Weight in Tons, Pounds, and Kilograms

Once the total volume is calculated, the tool converts the asphalt requirement into:

Tons (US) , Pounds and Kilograms

This makes it easy to compare material needs across regions or supplier estimates.

Standard Asphalt Density Explained

The calculator uses a default asphalt density of 145 lb/ft³, which is typical for hot mix asphalt. If your supplier uses a different value, adjust your quantity accordingly or consult a civil engineer for exact specs.

When to Use an Asphalt Calculator

This tool is perfect for:

  • Contractors bidding on paving jobs
  • Homeowners planning a new asphalt driveway
  • Estimating asphalt cost and delivery needs
  • Comparing asphalt vs concrete project volumes

Convert Square Feet to Tons of Asphalt

For rough estimates, this calculator converts square footage into tons, using the standard formula:

Tons = (Length × Width × Depth × 145) ÷ 2000

Frequently asked questions

Multiply the area (length × width × depth), convert to cubic feet, and then multiply by asphalt density (typically 145 lb/ft³). This calculator automates it for you.

A 2-inch thick layer of asphalt over 1 square foot typically weighs about 25 pounds, or 0.0125 tons. Our tool calculates this automatically.

This version estimates volume and weight only. For cost, multiply the tons required by your supplier’s price per ton (usually $90–$150 per ton in the U.S.).

Yes, but results may vary. Cold patch and recycled asphalt have different densities. For more accuracy, use the supplier’s material density.

Hot mix asphalt is used for roads and driveways and requires paving equipment. Cold patch is a quick-fix solution for potholes and small repairs.