325/65R18 in inches
A 325/65R18 tire stands 34.6 inches tall and is 12.8 inches wide. It fits an 18-inch wheel. People usually call it a 35-inch tire.
Tall
34.6″
880 mm
Wide
12.8″
325 mm
Wheel
18″
rim diameter
Cars that come with 325/65R18
Similar-height sizes
Within 3% of 325/65R18, so your speedometer stays close.
How 325/65R18 is measured
| Measurement | Inches | Millimetres |
|---|---|---|
| Overall height (diameter) | 34.63 | 880 |
| Tread width | 12.80 | 325 |
| Sidewall height | 8.32 | 211 |
| Distance per turn (circumference) | 108.8 | 2764 |
| Turns per mile | 582 | |
The first number (325) is the width in millimetres. The second (65) means the sidewall is 65% as tall as the tire is wide. The last (18) is the wheel size in inches. More on reading a tire size.