What size are your tires?

Where to find these numbers

1. On the tire

   On its side, close to the wheel: three numbers in a row like 225/65R17. Some start with P or LT and end with a code like 102H; check those on the tire’s page.

2. On the door jamb

   Open the driver’s door. Most vehicles have a tire information sticker on the door frame with the size the vehicle came with.

3. In the owner’s manual

   Look in the tires section. Some trims list more than one size, so match it to the tire on your vehicle.

How to read it

Example: 225/65R17 102H. Some sizes start with P (passenger) or LT (light truck).

1. 225Section width, in millimeters.
2. 65Aspect ratio: the sidewall height is 65% of the width.
3. RRadial construction.
4. 17Wheel (rim) diameter, in inches.
5. 102Load index: up to 1,874 lb (850 kg) on each tire.
6. HSpeed rating: up to 130 mph (210 km/h).
7. DOTThe last 4 digits of the DOT code are the week and year it was made: 2423 = week 24 of 2023.