Terms of Use

Last updated: October 27, 2026.

Tire Ruler provides free calculators for general estimating only. Tire dimensions are calculated from the size code and are theoretical; real tires vary by brand, model, rim width and inflation. Results are not a fitment guarantee. We make no guarantee of accuracy and are not liable for purchases, modifications or work based on these results. Confirm fitment, load index and speed rating with a tire professional and your vehicle maker’s specifications, and follow local laws (including speedometer accuracy requirements).

Contact: hello [at] tireruler.com.