215/65R16 vs 235/55R17
235/55R17 is a safe swap for 215/65R16 by the usual ±3% rule: the diameter differs by +0.64%.
Speedometer and odometer
With 235/55R17 on a car calibrated for 215/65R16, the speedometer reads 59.6 mph when you're really doing 60, and the odometer under-counts by 0.6%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.2 mph |
| 45 mph | 45.3 mph |
| 60 mph | 60.4 mph |
| 70 mph | 70.4 mph |
| 80 mph | 80.5 mph |
Other sizes close to 215/65R16
- 215/65R16 vs 225/55R17-0.96%
- 215/65R16 vs 215/60R16-3.13%
- 215/65R16 vs 205/60R16-4.88%
- 215/65R16 vs 215/70R16+3.13%
- 215/65R16 vs 215/60R17+0.57%
- 215/65R16 vs 205/65R16-1.90%
- 215/65R16 vs 235/65R16+3.79%
- 215/65R16 vs 225/60R16-1.39%
- 215/65R16 vs 225/65R16+1.90%
- 215/65R16 vs 235/60R16+0.36%
- 215/65R16 vs 225/55R16-4.67%
- 215/65R16 vs 215/70R15-0.57%
Questions
Can I replace 215/65R16 with 235/55R17?
235/55R17 is a safe swap for 215/65R16 by the usual ±3% rule: the diameter differs by +0.64%.
What's the difference between 215/65R16 and 235/55R17?
235/55R17 is 0.17" taller and 20 mm wider; the sidewall is -0.41". At an indicated 60 mph you'd actually be doing 60.4 mph.
Will 235/55R17 fit on 215/65R16 wheels?
No — 215/65R16 needs a 16" wheel and 235/55R17 a 17" wheel. This is a plus/minus-size swap that changes wheels too.