See how changing your tire size affects your car’s performance.
Our wheel size calculator is the most comprehensive tire comparison tool suitable for Vauxhall cars, SUVs, and Vans.
Key features:
- Comparison between two tire (tyres) sizes, either can be metric or imperial (US)
- List of possible tire equivalents and alternatives
- Option to change suspension parameters (fender clearance, scrub radius, suspension clearance, wheel well clearance)
- Car Performance option: find out how changing your tire size affects your car’s performance using text explanations
- Tire Plus / Minus sizing option
- The ability to use only those tire sizes that are on sale. Non-existent tire sizes will not be offered for selection
- Using Tire Designations: ISO Metric, LT High Flotation
Note: Dimensions displayed are calculated using industry-standard tire sizing specifications:
- ISO 4000-1, ISO 4000-2 Passenger car tyres and rims / Tyres / Rims
- ISO 8855 Road vehicles / Vehicle dynamics and road-holding ability