Contact

Questions, corrections, or feedback about the site's calculators, sources, and guides.

Send us a message

Fill in the form and it will open your email app with everything pre-filled, addressed to contact@onlineasphaltcalculator.com. We especially welcome corrections to formulas, defaults, or data. This form does not submit information to this website or create a project quote.

This opens your own email program to send the message — nothing is stored on this site. Please don't include personal or property-identifying details; see our privacy policy.

What's useful to include

  • The page or calculator you're asking about.
  • For a data correction: the figure, the source, and the date.
  • For a feature request: the project type and what you were trying to do.

What we can and cannot help with

We can review a reported calculation, clarify how an input works, and consider supported source corrections. We cannot inspect a property, set a pavement design, recommend a contractor, or provide a binding material or installation quote. For those decisions, contact a qualified local professional and obtain a written scope.

Please do not send payment details, government identifiers, or exact property-access information. Read the privacy policy and editorial policy for how the site handles feedback and source updates.