About Us
Tractor-Size is an independent, free reference that brings tractor tire sizes together in one place.
Tractor-Size was created so that farmers, tire dealers, service workshops and parts professionals can get a reliable answer to "Which tires fit this tractor?" in seconds. We publish the factory front and rear tire sizes of thousands of tractor models from more than 140 brands worldwide, in 9 languages.
Our mission
To base tractor tire choices on data, not guesswork. The right size matters for traction, fuel consumption, driveline life and safety.
Our data policy
- Primary sources: tractor–tire pairings come first from manufacturers' specification sheets, brochures and operator manuals.
- Secondary sources: where no primary source is available, authorised dealer documents and established technical data publications are used.
- Tire dimensions: outside diameter and width come from tire makers' public catalogues; sizes not listed are calculated with standard formulas and marked as such.
- No guesswork: sizes that cannot be verified are not published; those models are listed as "size coming soon".
- Continuous updates: the database is updated regularly with new models and user reports.
Independence
Tractor-Size is independent and is not the official site of any tire or tractor manufacturer. Factory size data is never influenced by commercial partnerships. Brand names are used for identification only and belong to their owners.
Feedback
If you spot an error or a missing model, let us know. Every report is reviewed and added to the database once verified.