How to Read a Tire Size

Well its that time in your cars life to replace the tires. I personally replace mine around 45,000 to 50,000 miles. This article is going to explain how to read the tire for size and air pressure.

Difficulty: Easy

Instructions

Things You'll Need:

• Tires

1. When the time comes get down to the level of your tire.

2. You can find the tire size in between the tire name and manufacturer name.

3. The first thing you size with start with is a letter. This letter is typically a P which stands for passenger tire.

4. Next will be a number which represents the width of the tire in millimeters. An example of this is 185.

5. The second number of the tire size represents the ratio of height to width (aspect ratio). This will be a number 50-70 for a typical passenger car.

6. You will have a letter seperating the numbers which is usually an R which stand for Radial

7. The number after the R in the previous step shows your diameter of wheel in inches. This number will vary from 13-22. Basically its the size of your rims for the tire.

8. To find your recommended air pressure you might have to search around the tire a little bit. The air pressure recommendation is found around the rim of the tire typically by the tire name.

Tips & Warnings

• Be Patient when searching you will find it.
• The letters for tire pressure are rather small

[investmentarts]

on 9/14/2009 I second Holly's comment 5*

[hollyhood314]

on 8/21/2009 AS A GIRL lol I Really appreciate this article!

[ezyas123]

on 5/12/2009 Great info on How to Read a Tire Size

[wizardofodds]

on 3/26/2009 Very useful article! I will keep this for reference! 5* and a recommendation!

[cybilfrost]

on 3/25/2009 I'll have to favorite this one, for when I need it. Great job! 5* and recommend!