Terms of Use

Last updated: 2026-10-26.

By using Tiremason you accept these terms. If you do not agree, please do not use the site.

Educational content only

Calculators and guides are provided for general educational purposes. They are not engineering advice, not a substitute for your vehicle's service manual, and not a fitment certification. Mechanical decisions — tire fitment, gearing, drivetrain work — carry safety risk; verify with a qualified professional.

Accuracy

Formulas and thresholds are sourced and tested as described on the methodology page, and nominal tire dimensions vary from real tires by brand and tread. You remain responsible for verifying results before acting on them.

Acceptable use

You may use the calculators freely for personal and commercial purposes. You may not misrepresent results as professional certification, or scrape the site in a way that degrades service for others.

Liability

The site is provided "as is" without warranties of any kind. To the maximum extent permitted by law, Tiremason and its operator are not liable for damages arising from use of the calculators or content.