Contact
Contact TyreCalc
Found an error in a calculation, want a tool we do not have yet, or have a question about a tyre size? We read every message.
Email us
When reporting a possible error, please include the page address, the numbers you entered, and the result you expected — that is usually enough for us to check it the same day.
Before you write
TyreCalc cannot advise whether a specific tyre fits your specific car — that needs the vehicle, the current tyre size and a physical check, which only a tyre professional or your dealer can do. Our tools give you the numbers; a professional makes the fitment decision. See our Disclaimer.