About Online Asphalt Calculator

A free planning tool for asphalt quantity and cost — honest about what it can and cannot do.

What this site is

Online Asphalt Calculator helps US homeowners and contractors estimate how much hot mix asphalt a project needs, what the material will cost, and how many truckloads to schedule. The calculators show every assumption, so you can check the numbers against a supplier's quote before you order.

What this site is not

Built as a planning tool from documented formulas and public data. It is not a substitute for a local contractor or licensed engineer, and it does not provide real-time or exact local pricing. Pavement that lasts depends on soil, drainage, climate, traffic, and local code — things no calculator can see.

How we keep it honest

• Every default is labeled as a planning assumption, with its basis shown.
• Government binder indexes and public-project bid prices are never presented as your local price.
• Cost bases (material, delivered, installed) are kept separate and never renamed.
• The calculation core is unit-tested, and the build rejects output that fails our checks.

Read the methodology for the formulas and the data sources page for how we treat public data.Questions or corrections: contact@onlineasphaltcalculator.com.