195/55R16 vs 225/50R16
225/50R16 is a safe swap for 195/55R16 by the usual ±3% rule: the diameter differs by +1.69%.
Speedometer and odometer
With 225/50R16 on a car calibrated for 195/55R16, the speedometer reads 59.0 mph when you're really doing 60, and the odometer under-counts by 1.7%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.5 mph |
| 45 mph | 45.8 mph |
| 60 mph | 61.0 mph |
| 70 mph | 71.2 mph |
| 80 mph | 81.4 mph |
Other sizes close to 195/55R16
- 195/55R16 vs 205/55R16+1.77%
- 195/55R16 vs 215/45R17+0.71%
- 195/55R16 vs 215/55R16+3.54%
- 195/55R16 vs 205/45R17-0.74%
- 195/55R16 vs 185/65R15+0.10%
- 195/55R16 vs 195/60R15-0.95%
- 195/55R16 vs 205/50R16-1.53%
- 195/55R16 vs 195/50R16-3.14%
- 195/55R16 vs 205/60R15+0.98%
- 195/55R16 vs 185/55R16-1.77%
- 195/55R16 vs 205/45R16-4.83%
- 195/55R16 vs 235/40R17-0.18%
Questions
Can I replace 195/55R16 with 225/50R16?
225/50R16 is a safe swap for 195/55R16 by the usual ±3% rule: the diameter differs by +1.69%.
What's the difference between 195/55R16 and 225/50R16?
225/50R16 is 0.41" taller and 30 mm wider; the sidewall is +0.21". At an indicated 60 mph you'd actually be doing 61.0 mph.
Will 225/50R16 fit on 195/55R16 wheels?
Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 225 mm tire and the fender clearance.