Complete reference guide with interactive lookup tool
| Rating | Max Speed (mph) | Max Speed (km/h) | Typical Vehicles |
|---|---|---|---|
| L | 75 | 120 | Off-road, light trucks |
| M | 81 | 130 | Temporary spare tires |
| N | 87 | 140 | Temporary spare tires |
| P | 93 | 150 | Sedans, station wagons |
| Q | 99 | 160 | Winter tires, SUVs |
| R | 106 | 170 | Heavy-duty light trucks |
| S | 112 | 180 | Family sedans, minivans |
| T | 118 | 190 | Family sedans, minivans |
| U | 124 | 200 | Sedans, coupes |
| H | 130 | 210 | Sport sedans, coupes |
| V | 149 | 240 | Sports cars, luxury |
| W | 168 | 270 | Performance sports cars |
| Y | 186 | 300 | Exotic/high-performance |
| Z/ZR | 149+ | 240+ | High-performance sports |
Mix different speed ratings on the same axle (front or rear)
Using tires with lower speed ratings than OEM specs may void warranty coverage and affect insurance claims in speed-related accidents.
Common rating: Q-rated (99 mph)
This is perfectly fine for winter driving. The trade-off in maximum speed allows for better cold-weather performance.
Common ratings: S or T rated
S = 112 mph, T = 118 mph. Suitable for most daily driving and highway speeds.
Common ratings: V, W, or Y rated
V = 149 mph, W = 168 mph, Y = 186 mph. For sports cars and high-performance driving.
Speed ratings: Same system applies
Run-flat technology doesn't change the speed rating system - the same letters and speeds apply.
The letter "H" is a speed rating that indicates the tire is safe for speeds up to 130 mph (210 km/h). It's commonly found on sport sedans and coupes.
You need at least the speed rating specified by your vehicle manufacturer (found in owner's manual or door jamb sticker). You can use a higher rating, but never lower.
Yes, you can always use tires with a higher speed rating than required. This may provide better handling and stability, though it might affect ride comfort slightly.
V-rated tires are safe up to 149 mph, while W-rated tires can handle up to 168 mph. W-rated tires typically offer better high-speed stability and performance handling.
Higher speed ratings often mean stiffer sidewalls for stability, which can result in a firmer, less comfortable ride. The trade-off is improved handling and high-speed performance.
For regular highway driving, S-rated (112 mph) or T-rated (118 mph) tires are perfectly adequate and offer good comfort. H-rated (130 mph) is common for sportier vehicles.