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How Do I Find My Tire Size?
Jun 6th 2023
To find your tire size, you can follow these steps:
- Check the sidewall of your tire: Look for a combination of numbers and letters imprinted on the sidewall of your tire. The tire size is usually displayed in the following format: P215/65R15 or 225/50ZR17. The numbers and letters provide specific information about your tire.
- Understand the tire size format: The tire size is typically represented by a sequence of numbers and letters. Here's a breakdown of the common format:
- Tire Type: The first letter indicates the tire type. For example, "P" stands for passenger tire, "LT" for light truck, and "T" for temporary spare tire.
- Tire Width: The three-digit number immediately following the tire type represents the width of the tire in millimeters. For instance, in the example P215/65R15, the width is 215 mm.
- Aspect Ratio: The two-digit number after the slash represents the aspect ratio or profile of the tire, which is the ratio of the tire's sidewall height to its width. In the example, the aspect ratio is 65, indicating that the sidewall height is 65% of the tire's width.
- Construction Type: The letter following the aspect ratio indicates the construction type of the tire. "R" stands for radial, which is the most common type of tire construction today.
- Rim Diameter: The two-digit number after the construction type letter represents the diameter of the rim in inches. In the example, the rim diameter is 15 inches.
- Note additional information: The tire size may be followed by additional information such as load index and speed rating. These provide details about the maximum load capacity and speed capabilities of the tire.
If you're still unsure about your tire size or have difficulty locating the information, you can refer to your vehicle's owner's manual, check the driver's side door jamb sticker, or consult a tire professional. They can help you determine the correct tire size for your vehicle.
Remember, it's important to use the appropriate tire size recommended by the vehicle manufacturer to ensure optimal performance, safety, and compatibility with your vehicle.