235/40R17 vs 195/55R16
195/55R16 is a safe swap for 235/40R17 by the usual ±3% rule: the diameter differs by +0.18%.
Speedometer and odometer
With 195/55R16 on a car calibrated for 235/40R17, the speedometer reads 59.9 mph when you're really doing 60, and the odometer under-counts by 0.2%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.1 mph |
| 45 mph | 45.1 mph |
| 60 mph | 60.1 mph |
| 70 mph | 70.1 mph |
| 80 mph | 80.1 mph |
Other sizes close to 235/40R17
- 235/40R17 vs 225/45R17+2.34%
- 235/40R17 vs 215/45R17+0.89%
- 235/40R17 vs 205/50R17+2.74%
- 235/40R17 vs 215/50R17+4.36%
- 235/40R17 vs 235/45R17+3.79%
- 235/40R17 vs 205/45R17-0.56%
- 235/40R17 vs 245/40R17+1.29%
- 235/40R17 vs 255/40R17+2.58%
- 235/40R17 vs 205/40R17-3.87%
- 235/40R17 vs 205/40R18+0.23%
- 235/40R17 vs 215/40R17-2.58%
Questions
Can I replace 235/40R17 with 195/55R16?
195/55R16 is a safe swap for 235/40R17 by the usual ±3% rule: the diameter differs by +0.18%.
What's the difference between 235/40R17 and 195/55R16?
195/55R16 is 0.04" taller and 40 mm narrower; the sidewall is +0.52". At an indicated 60 mph you'd actually be doing 60.1 mph.
Will 195/55R16 fit on 235/40R17 wheels?
No — 235/40R17 needs a 17" wheel and 195/55R16 a 16" wheel. This is a plus/minus-size swap that changes wheels too.