195/55R15 vs 195/50R16
195/50R16 is a safe swap for 195/55R15 by the usual ±3% rule: the diameter differs by +0.99%.
Speedometer and odometer
With 195/50R16 on a car calibrated for 195/55R15, the speedometer reads 59.4 mph when you're really doing 60, and the odometer under-counts by 1.0%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.3 mph |
| 45 mph | 45.4 mph |
| 60 mph | 60.6 mph |
| 70 mph | 70.7 mph |
| 80 mph | 80.8 mph |
Other sizes close to 195/55R15
- 195/55R15 vs 185/65R15+4.37%
- 195/55R15 vs 185/60R15+1.26%
- 195/55R15 vs 195/60R15+3.27%
- 195/55R15 vs 175/65R15+2.18%
- 195/55R15 vs 185/65R14+0.10%
- 195/55R15 vs 205/50R15-1.60%
- 195/55R15 vs 185/55R15-1.85%
- 195/55R15 vs 205/45R16-0.77%
- 195/55R15 vs 175/70R14+0.86%
- 195/55R15 vs 225/45R15-2.02%
- 195/55R15 vs 195/50R15-3.27%
- 195/55R15 vs 225/50R15+1.76%
Questions
Can I replace 195/55R15 with 195/50R16?
195/50R16 is a safe swap for 195/55R15 by the usual ±3% rule: the diameter differs by +0.99%.
What's the difference between 195/55R15 and 195/50R16?
195/50R16 is 0.23" taller and 0 mm wider; the sidewall is -0.38". At an indicated 60 mph you'd actually be doing 60.6 mph.
Will 195/50R16 fit on 195/55R15 wheels?
No — 195/55R15 needs a 15" wheel and 195/50R16 a 16" wheel. This is a plus/minus-size swap that changes wheels too.