235/55R20 in inches
A 235/55R20 tire stands 30.2 inches tall and is 9.3 inches wide. It fits a 20-inch wheel. People usually call it a 30-inch tire.
Tall
30.2″
767 mm
Wide
9.3″
235 mm
Wheel
20″
rim diameter
Cars that come with 235/55R20
Similar-height sizes
Within 3% of 235/55R20, so your speedometer stays close.
| Size | Height | vs 235/55R20 | |
|---|---|---|---|
| 255/70R16 | 30.1″ | −0.4%needs 16″ wheels | Compare |
| 255/60R18 | 30.0″ | −0.4%needs 18″ wheels | Compare |
| 255/50R20 | 30.0″ | −0.5% | Compare |
| 235/65R18 | 30.0″ | −0.5%needs 18″ wheels | Compare |
| 265/50R20 | 30.4″ | +0.8% | Compare |
| 295/45R20 | 30.5″ | +0.9% | Compare |
| 245/75R16 | 30.5″ | +1.0%needs 16″ wheels | Compare |
| 245/70R17 | 30.5″ | +1.1%needs 17″ wheels | Compare |
How 235/55R20 is measured
| Measurement | Inches | Millimetres |
|---|---|---|
| Overall height (diameter) | 30.18 | 767 |
| Tread width | 9.25 | 235 |
| Sidewall height | 5.09 | 129 |
| Distance per turn (circumference) | 94.8 | 2408 |
| Turns per mile | 668 | |
The first number (235) is the width in millimetres. The second (55) means the sidewall is 55% as tall as the tire is wide. The last (20) is the wheel size in inches. More on reading a tire size.