TreadSize

Tire math reference

Privacy Policy

Garage tire fitment bench with TreadSize OE baseline, diameter tolerance, and clearance notes

Effective date: June 2026

What we collect

TreadSize collects minimal data. Our tools run entirely in your browser — tire sizes you enter are never transmitted to our servers. Specifically:

  • Tire size inputs: processed locally in your browser. Not sent to any server. Not logged anywhere.
  • Server logs: like all web servers, our hosting infrastructure logs basic request data (IP address, URL requested, timestamp, browser type). These logs are used for security and performance monitoring only and are not tied to your tire searches.
  • Analytics: we may use privacy-respecting analytics that do not use cookies or fingerprinting (e.g., aggregate page view counts). No personal identifiers are collected.

Cookies

TreadSize does not use tracking cookies. We do not use advertising pixels, third-party ad networks, or behavioral tracking.

Third parties

We do not sell, rent, or share your data with third parties. If we add affiliate links in future (disclosed when live), clicking those links takes you to a third-party site governed by their own privacy policy — we do not share any data with those sites.

Children

TreadSize is not directed at children under 13. We do not knowingly collect data from children.

Changes

We may update this policy. Changes will be posted on this page with an updated effective date.

Contact

Privacy questions: hello@treadsize.com

Sources, review and limits

Last verified

June 2026

Author and reviewer

Written by TreadSize editorial desk; reviewed by Automotive fitment review.

Primary data sources

  • Tire size math from ISO-style tire notation formulas
  • Original-equipment size references supplied by users or vehicle placards
  • Fitment-risk thresholds documented in the calculator

Tire fitment output is a planning estimate. Wheel width, offset, suspension, load rating and local rules matter. Confirm OE specs and safe fitment with a tire professional before driving.