About Tire Reference

Tire Reference is operated as an independent website at tirereference.com. It is not owned or controlled by a tire manufacturer, tire retailer, or vehicle brand. Calculator results and catalog notes are produced by our sizing tools and structured datasets — not as manufacturer specifications for a particular tire model.

Questions and correction requests can be sent via our contact page or [email protected].

Tire Reference helps drivers:

• Understand tire-size codes
• Calculate nominal tire dimensions
• Compare alternative sizes
• Understand speedometer and dimensional differences
• Explore tire models and related sizes where our dataset supports them

Tire dimensions are calculated from the entered size code using standard geometry. Tire-size and product information is maintained in a structured database. Manufacturer measurements for a specific model may differ from nominal calculations because of tread depth, rim width, inflation pressure and load.

Vehicle fitment should always be confirmed separately against the door placard, wheel and tire manufacturer guidance. Read our data and calculation standards for details.

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