VIN Decoder site map

Every public page on this site, generated from the same route list that produces the XML sitemap and the machine-readable discovery manifest, so the three cannot disagree.

Home

  • A VIN decoder that never sends the VIN

    Decode a VIN, look it up, and read the make, model, year, body and engine — all of it worked out inside your browser, so the VIN is never transmitted anywhere.

Calculators

  • Car loan calculator

    Find the monthly payment on a car loan and what the car actually costs once interest, sales tax, fees and your trade-in are counted. No lead form and no email gate.

  • Tire size calculator

    Compare one tire size against another and read the diameter change, the speedometer error at a speed you choose, and the clearance change. It sells nothing.

  • Gear ratio calculator

    Work out engine speed at any road speed from the gear ratio, the final drive and the tire size, with the overall drive ratio and revolutions per mile alongside.

Learn

  • VIN check digit

    Work out the ninth character of a VIN from the other sixteen, with every multiplication shown, and read what a disagreement does and does not prove.

  • How this site works

    Every formula the three calculators use, how the coming decoder will read a VIN without transmitting it, and the four things this site refuses to offer.

  • About this site

    Why a VIN decoder should not need a server at all, what this site costs you, and an honest account of which parts are finished and which are still being written.

Legal

  • Privacy

    Every figure and every tire size you type stays inside your browser. The two analytics events this site counts, what they carry, and the storage it does not use.

  • Terms

    What this site is and is not: arithmetic for planning rather than advice, the accuracy limit on every figure, and the fitment warning that matters more than any of them.

  • Cookies

    This site sets no cookies at all. What it uses instead is two analytics events that carry a name and nothing else, sent to a cookieless collector.

  • Contact

    The address that reaches a person, what to put in a report about a figure that looks wrong, and an honest account of how quickly mail is answered.

Navigation

  • VIN Decoder site map

    A human-readable map of every public page on this site, generated from the same route list as the XML sitemap and the machine-readable discovery manifest.