255/55R18
All technical dimensions and alternatives for this tire size.
| Technical Specs | |
|---|---|
| Diameter | 737.7 mm (29.04 in) |
| Section Width | 255 mm (10.04 in) |
| Sidewall Height | 140.3 mm |
| Circumference | 2317.6 mm |
| Revs / km | 431.5 |
| Rim Diameter (in) | R18 (457.2 mm) |
Alternative sizes (±3%)
Equivalents on other rim diameters
Calculations use nominal dimensions; actual measurements can vary ±1–2% by manufacturer and model. Always follow your owner's manual and door-jamb placard.
255/55R18