Tire Speed Rating Chart

Knowing the speed rating of tires is crucial as it specifies the maximum safe speed the tire can sustain with a load.

Below is a table depicting tire speed rating chart, which represents the maximum speed that a tire is legally certified to travel under specific conditions.

Speed SymbolMaximum Speed
N87 mph (140 km/h)
P93 mph (150 km/h)
Q99 mph (160 km/h)
R106 mph (170 km/h)
S112 mph (180 km/h)
T118 mph (190 km/h)
U124 mph (200 km/h)
H130 mph (210 km/h)
V149 mph (240 km/h)
W168 mph (270 km/h)
Y186 mph (300 km/h)
(Y)Over 186 mph (300 km/h)
Z149+ mph (240+ km/h)


  • This rating is based on the tire being in optimal condition, including being properly inflated and within load capacity.
  • The speed ratings are determined through controlled laboratory testing and do not consider variables like weather, road conditions, and the condition of the vehicle, which can impact a tire’s overall speed performance.
  • The “Z” rating used to be the highest rating, but as tire technology advanced, the “W,” “Y,” and “(Y)” designations were introduced.
  • The symbol “(Y)” signifies tires that are approved for speeds exceeding 186 mph (300 km/h), commonly used on high-performance supercars and specialized vehicles.
  • Always refer to the vehicle’s owner’s manual as well as the tire manufacturer’s recommendations when choosing a tire to ensure you have the correct speed rating for your vehicle.