255/55R19 vs 265/55R19
265/55R19 is a safe swap for 255/55R19 by the usual ±3% rule: the diameter differs by +1.44%.
Speedometer and odometer
With 265/55R19 on a car calibrated for 255/55R19, the speedometer reads 59.1 mph when you're really doing 60, and the odometer under-counts by 1.4%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.4 mph |
| 45 mph | 45.6 mph |
| 60 mph | 60.9 mph |
| 70 mph | 71.0 mph |
| 80 mph | 81.2 mph |
Other sizes close to 255/55R19
- 255/55R19 vs 235/55R19-2.88%
- 255/55R19 vs 255/50R19-3.34%
- 255/55R19 vs 255/50R20-0.01%
- 255/55R19 vs 235/65R18-0.05%
- 255/55R19 vs 275/45R20-1.00%
- 255/55R19 vs 225/55R19-4.32%
- 255/55R19 vs 235/55R20+0.45%
- 255/55R19 vs 245/55R19-1.44%
- 255/55R19 vs 255/60R19+3.34%
- 255/55R19 vs 265/50R19-2.03%
- 255/55R19 vs 245/50R19-4.65%
- 255/55R19 vs 255/60R18+0.01%
Questions
Can I replace 255/55R19 with 265/55R19?
265/55R19 is a safe swap for 255/55R19 by the usual ±3% rule: the diameter differs by +1.44%.
What's the difference between 255/55R19 and 265/55R19?
265/55R19 is 0.43" taller and 10 mm wider; the sidewall is +0.22". At an indicated 60 mph you'd actually be doing 60.9 mph.
Will 265/55R19 fit on 255/55R19 wheels?
Both use a 19" rim, so the wheel diameter matches; check the wheel's width range for a 265 mm tire and the fender clearance.