Tire Size Calculator
Compare tire sizes, calculate differences, and visualize how new tires will affect your vehicle’s performance and appearance.
Tire Specifications
Original Tire
New Tire
Comparison Results
Diameter Difference: –
Width Difference: –
Sidewall Difference: –
Circumference Difference: –
Speedometer Reading: –
Note:
A difference of more than 3% in overall diameter may affect vehicle handling, ABS, and traction control systems.
Visual Comparison
About Tire Sizes
Tire Width
The width of the tire in millimeters from sidewall to sidewall. Affects traction and handling.
Aspect Ratio
The height of the tire’s cross-section as a percentage of its width. Lower ratios mean lower profile tires.
Rim Diameter
The diameter of the wheel rim in inches. Larger rims generally allow for larger brake components.