Tire Size 305/70R18 in inches
Below are the most common tire sizing information in inches:
305/70R18 Height - How tall is a 305/70R18 tire in inches?
This tire size is 34.811 inches tall.
305/70R18 Width in inches - How wide is a 305/70R18 tire?
This tire size is 12.008 inches wide (tread width).
What's the Sidewall Size of a 305/70R18 Tire in Inches?
This tire size has 8.406 inch sidewalls.
Other Questions About the 305/70R18 Tire Size
Here's some other common questions asked about this tire size:
What size rims fit a 305/70R18 tire?
This tire will fit onto 18 inch wheels.
What is the next size up from 305/70R18?
The tire sizes below are the next sizes up from 305/70R18. The table shows the increase in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 35x12.5R18 | 35.000 | 12.500 | + 0.189 in | + 0.492 in |
| 315/70R18 | 35.362 | 12.402 | + 0.551 in | + 0.394 in |
| 37x12.5R18 | 37.000 | 12.500 | + 2.189 in | + 0.492 in |
| 37x13.5R18 | 37.000 | 13.500 | + 2.189 in | + 1.492 in |
| 38x13.5R18 | 38.000 | 13.500 | + 3.189 in | + 1.492 in |
What is the next size down from 305/70R18?
The tire sizes below are the next sizes down from 305/70R18. The table shows the decrease in diameter and width for each option.
| Tire Size | Diameter (in) | Width (in) | Diameter Change | Width Change |
|---|---|---|---|---|
| 295/70R18 | 34.260 | 11.614 | - 0.551 in | - 0.394 in |
| 34x7.5R18 | 34.000 | 7.500 | - 0.811 in | - 4.508 in |
| 285/70R18 | 33.709 | 11.220 | - 1.102 in | - 0.787 in |
| 275/70R18 | 33.157 | 10.827 | - 1.654 in | - 1.181 in |
| 295/65R18 | 33.098 | 11.614 | - 1.713 in | - 0.394 in |
What does the 305 mean in tire size?
This represents the treadwidth of the tire. The tread is 305mm wide, or 34.811 inches wide.
What does the 70 mean in tire size?
This represents the sidewall height of the tire, as a percentage of the width. The sidewall height is 70% of 305mm, or 213.5mm, which is 8.406 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 an 18 inch wheel.
