Vehicle · Tires
Tire load index and speed rating decoder.
Decode the two-or-three digit number and letter on your sidewall, such as 98H.
Inputs
Decoded
Enter the details to see the result.
How do you read 98H on a tire?
The service description follows the size on the sidewall. In 225/45R17 94W the 94 is the load index (670 kg, about 1,477 lb per tire) and the W is the speed symbol (270 km/h, 168 mph). Some light truck and van tires show two numbers, such as 103/100S: the first is the single-fitment load index and the second is the dual-fitment index for twin rear wheels. This decoder reads both, and brackets such as 94(W) mean the tire is rated above the speed shown.
Use the tool to compare a replacement tire with the one your vehicle maker specifies. Load index and speed symbol must be at least what the placard or manual lists. The full lookup tables are on the load index chart and speed rating chart pages.
Frequently asked questions
What does 98H mean on a tire?
98 is the load index, 750 kg (about 1,653 lb) per tire, and H is the speed symbol, 210 km/h (130 mph).
What do two load numbers like 103/100 mean?
The first number is the load index for single fitment and the second is for dual fitment, where two tires share a wheel position.
Where is the service description on the tire?
On the sidewall right after the size, for example 225/45R17 94W, with the load index number first and the speed letter last.
What if my index is under 60 or over 130?
This tool covers 60 to 130, which includes typical passenger and light truck tires. For other values check the tire maker's chart.
Sources
Checked
Scope
Reference lookup only. Always replace tires with a load index and speed symbol at least equal to what the vehicle placard and owner's manual require.