Tire Size Decoder
Enter a tire size code (e.g., 205/55R16) to understand what each number and letter means.
Enter tire size code (e.g., 205/55R16 91V)
Understanding Tire Size Codes
Example: 205/55R16 91V
205 - Tire width in millimeters (mm)
55 - Aspect ratio (sidewall height is 55% of width)
R - Radial construction (most common)
16 - Rim diameter in inches
91 - Load index (maximum weight capacity)
V - Speed rating (maximum speed capability)