205/60R15 vs 205/65R15
205/65R15 is outside the ±3% rule as a replacement for 205/60R15: the diameter differs by +3.27%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
Speedometer and odometer
With 205/65R15 on a car calibrated for 205/60R15, the speedometer reads 58.1 mph when you're really doing 60, and the odometer under-counts by 3.3%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 31.0 mph |
| 45 mph | 46.5 mph |
| 60 mph | 62.0 mph |
| 70 mph | 72.3 mph |
| 80 mph | 82.6 mph |
Other sizes close to 205/60R15
- 205/60R15 vs 205/55R16+0.78%
- 205/60R15 vs 195/65R15+1.20%
- 205/60R15 vs 185/65R15-0.88%
- 205/60R15 vs 195/60R15-1.91%
- 205/60R15 vs 185/60R15-3.83%
- 205/60R15 vs 195/55R16-0.97%
- 205/60R15 vs 225/50R16+0.70%
- 205/60R15 vs 175/65R15-2.95%
- 205/60R15 vs 195/70R14+0.26%
- 205/60R15 vs 215/60R15+1.91%
- 205/60R15 vs 225/50R15-3.35%
- 205/60R15 vs 245/45R16-0.02%
Questions
Can I replace 205/60R15 with 205/65R15?
205/65R15 is outside the ±3% rule as a replacement for 205/60R15: the diameter differs by +3.27%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
What's the difference between 205/60R15 and 205/65R15?
205/65R15 is 0.81" taller and 0 mm wider; the sidewall is +0.40". At an indicated 60 mph you'd actually be doing 62.0 mph.
Will 205/65R15 fit on 205/60R15 wheels?
Both use a 15" rim, so the wheel diameter matches; check the wheel's width range for a 205 mm tire and the fender clearance.