Frequently Asked Questions
A 225/45R15 tire is about 23 inches tall.
The numbers in 225/45R15 suggest the tire's dimensions:
- 25: This indicates the width of the tire in millimeters from sidewall to sidewall when mounted on its intended rim width.
- 45: This range represents the aspect ratio of the tire; that's the ratio of the tire's sidewall peak to its width.
- R stands for radial creation; that is the most unusual type of tire construction.
- 15: The number right here indeed tells you about the diameter of the wheel's rims in inches.