Tire Size Page
255/50R18 Tire Size
A 255/50R18 tire is approximately 28.04 inches tall, with a sidewall height of 5.02 inches and about 719.3 revolutions per mile.
TL;DR: 255/50R18 combines a 255 mm section width, a 50% aspect ratio, and a 18-inch wheel diameter.
Quick facts
Diameter
28.04 in
712 mm overall height
Sidewall
5.02 in
128 mm sidewall height
Circumference
88.09 in
2237 mm per rotation
Revs / Mile
719.3
446.9 revs per kilometer
255/50R18 Dimensions
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 28.04 | 712 |
| Sidewall height | 5.02 | 128 |
| Section width | 10.04 | 255 |
| Circumference | 88.09 | 2237 |
| Wheel diameter | 18 | 457 |
| Revolutions per mile | 719.3 | — |