195/60R15 vs 185/65R15
185/65R15 is a safe swap for 195/60R15 by the usual ±3% rule: the diameter differs by +1.06%.
Speedometer and odometer
With 185/65R15 on a car calibrated for 195/60R15, the speedometer reads 59.4 mph when you're really doing 60, and the odometer under-counts by 1.1%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 30.3 mph |
| 45 mph | 45.5 mph |
| 60 mph | 60.6 mph |
| 70 mph | 70.7 mph |
| 80 mph | 80.8 mph |
Other sizes close to 195/60R15
- 195/60R15 vs 195/65R15+3.17%
- 195/60R15 vs 185/60R15-1.95%
- 195/60R15 vs 195/55R16+0.96%
- 195/60R15 vs 205/50R16-0.59%
- 195/60R15 vs 175/65R15-1.06%
- 195/60R15 vs 205/50R15-4.72%
- 195/60R15 vs 205/60R15+1.95%
- 195/60R15 vs 195/55R15-3.17%
- 195/60R15 vs 185/55R15-4.96%
- 195/60R15 vs 185/55R16-0.83%
- 195/60R15 vs 215/60R15+3.90%
- 195/60R15 vs 185/70R14-0.07%
Questions
Can I replace 195/60R15 with 185/65R15?
185/65R15 is a safe swap for 195/60R15 by the usual ±3% rule: the diameter differs by +1.06%.
What's the difference between 195/60R15 and 185/65R15?
185/65R15 is 0.26" taller and 10 mm narrower; the sidewall is +0.13". At an indicated 60 mph you'd actually be doing 60.6 mph.
Will 185/65R15 fit on 195/60R15 wheels?
Both use a 15" rim, so the wheel diameter matches; check the wheel's width range for a 185 mm tire and the fender clearance.