Trade Tools
Free tools for tire buyers & dealers
Quick references used every day when buying and selling tires — no sign-in required.
DOT Decoder
Decode the DOT code on any tire — plant, production week and year, and how old the tire is.
Tire Size Calculator
Compute overall diameter, sidewall height, circumference and revolutions per km from a metric size.
Load Index Chart
Full ETRTO load index table (51–200) with kg ratings, plus speed ratings.
EU Label Guide
How to read the EU tire label — fuel efficiency, wet grip and rolling noise.