The speed rating is the maximum service speed of a passenger car tire. Here is a list of rating indicators and their mile-per-hour equivalents. This rating system applies to all tire manufacturers.
| Rating | Maximum Speed | |
| Q | 99 mph | 160 kph |
| R | 106 mph | 170 kph |
| S | 112 mph | 180 kph |
| T | 118 mph | 190 kph |
| U | 124 mph | 200 kph |
| H | 130 mph | 210 kph |
| V | 149 mph | 240 kph |
| W | 168 mph | 270 kph |
| Y | 186 mph | 300 kph |
| Z | Above 149 mph | Above 240 kph |