Tire Size 255/55R18 in inches
Below are the most common tire sizing information in inches:
255/55R18 Height - How tall is a 255/55R18 tire in inches?
This tire size is 29.043 inches tall.
255/55R18 Width in inches - How wide is a 255/55R18 tire?
This tire size is 10.039 inches wide (tread width).
What's the Sidewall Size of a 255/55R18 Tire in Inches?
This tire size has 5.522 inch sidewalls.
Other Questions About the 255/55R18 Tire Size
Here's some other common questions asked about this tire size:
What size rims fit a 255/55R18 tire?
This tire will fit onto 18 inch wheels.
What is the next size up from 255/55R18?
The tire sizes below are the next sizes up from 255/55R18. The table shows the increase in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 285/50R18 | 29.220 | 11.220 | + 0.177 in | + 1.181 in |
| 275/55R18 | 29.909 | 10.827 | + 0.866 in | + 0.787 in |
| 285/55R18 | 30.343 | 11.220 | + 1.299 in | + 1.181 in |
| 265/60R18 | 30.520 | 10.433 | + 1.476 in | + 0.394 in |
| 275/60R18 | 30.992 | 10.827 | + 1.949 in | + 0.787 in |
What is the next size down from 255/55R18?
The tire sizes below are the next sizes down from 255/55R18. The table shows the decrease in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 29x4.5R18 | 29.000 | 4.500 | - 0.043 in | - 5.539 in |
| 29x5R18 | 29.000 | 5.000 | - 0.043 in | - 5.039 in |
| 29x5.5R18 | 29.000 | 5.500 | - 0.043 in | - 4.539 in |
| 155/90R18 | 28.984 | 6.102 | - 0.059 in | - 3.937 in |
| 225/60R18 | 28.630 | 8.858 | - 0.413 in | - 1.181 in |
What does the 255 mean in tire size?
This represents the treadwidth of the tire. The tread is 255mm wide, or 29.043 inches wide.
What does the 55 mean in tire size?
This represents the sidewall height of the tire, as a percentage of the width. The sidewall height is 55% of 255mm, or 140.25mm, which is 5.522 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.
