235/60R16 vs 225/70R16
225/70R16 is outside the ±3% rule as a replacement for 235/60R16: the diameter differs by +4.79%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
Speedometer and odometer
With 225/70R16 on a car calibrated for 235/60R16, the speedometer reads 57.3 mph when you're really doing 60, and the odometer under-counts by 4.8%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 31.4 mph |
| 45 mph | 47.2 mph |
| 60 mph | 62.9 mph |
| 70 mph | 73.4 mph |
| 80 mph | 83.8 mph |
Other sizes close to 235/60R16
- 235/60R16 vs 235/55R17+0.28%
- 235/60R16 vs 215/65R16-0.36%
- 235/60R16 vs 215/60R16-3.49%
- 235/60R16 vs 215/70R16+2.76%
- 235/60R16 vs 215/60R17+0.20%
- 235/60R16 vs 205/65R16-2.25%
- 235/60R16 vs 235/65R16+3.41%
- 235/60R16 vs 225/60R16-1.74%
- 235/60R16 vs 225/65R16+1.53%
- 235/60R16 vs 215/70R15-0.93%
- 235/60R16 vs 195/75R16+1.53%
- 235/60R16 vs 205/70R16+0.73%
Questions
Can I replace 235/60R16 with 225/70R16?
225/70R16 is outside the ±3% rule as a replacement for 235/60R16: the diameter differs by +4.79%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
What's the difference between 235/60R16 and 225/70R16?
225/70R16 is 1.30" taller and 10 mm narrower; the sidewall is +0.65". At an indicated 60 mph you'd actually be doing 62.9 mph.
Will 225/70R16 fit on 235/60R16 wheels?
Both use a 16" rim, so the wheel diameter matches; check the wheel's width range for a 225 mm tire and the fender clearance.