Tire Size 225/45R18 in inches
Below are the most common tire sizing information in inches:
225/45R18 Height - How tall is a 225/45R18 tire in inches?
This tire size is 25.972 inches tall.
225/45R18 Width in inches - How wide is a 225/45R18 tire?
This tire size is 8.858 inches wide (tread width).
What's the Sidewall Size of a 225/45R18 Tire in Inches?
This tire size has 3.986 inch sidewalls.
Other Questions About the 225/45R18 Tire Size
Here's some other common questions asked about this tire size:
What size rims fit a 225/45R18 tire?
This tire will fit onto 18 inch wheels.
What is the next size up from 225/45R18?
The tire sizes below are the next sizes up from 225/45R18. The table shows the increase in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 255/40R18 | 26.031 | 10.039 | + 0.059 in | + 1.181 in |
| 295/35R18 | 26.130 | 11.614 | + 0.157 in | + 2.756 in |
| 235/45R18 | 26.327 | 9.252 | + 0.354 in | + 0.394 in |
| 265/40R18 | 26.346 | 10.433 | + 0.374 in | + 1.575 in |
| 305/35R18 | 26.406 | 12.008 | + 0.433 in | + 3.15 in |
What is the next size down from 225/45R18?
The tire sizes below are the next sizes down from 225/45R18. The table shows the decrease in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 215/45R18 | 25.618 | 8.465 | - 0.354 in | - 0.394 in |
| 185/50R18 | 25.283 | 7.283 | - 0.689 in | - 1.575 in |
| 205/45R18 | 25.264 | 8.071 | - 0.709 in | - 0.787 in |
| 215/40R18 | 24.772 | 8.465 | - 1.201 in | - 0.394 in |
| 205/40R18 | 24.457 | 8.071 | - 1.516 in | - 0.787 in |
What does the 225 mean in tire size?
This represents the treadwidth of the tire. The tread is 225mm wide, or 25.972 inches wide.
What does the 45 mean in tire size?
This represents the sidewall height of the tire, as a percentage of the width. The sidewall height is 45% of 225mm, or 101.25mm, which is 3.986 inches.
What does the 18 mean in tire size?
This represents the wheel diameter that this tire size fits on. This tire size is meant to fit a 18 inch wheel.
