225/60R17 vs 225/65R17 at a glance
| Measure | 225/60R17 (current) | 225/65R17 (new) | Difference |
|---|---|---|---|
| Overall height | 27.63 in | 28.52 in | +0.89 in (+3.21%) |
| Width | 8.86 in (225 mm) | 8.86 in (225 mm) | +0 mm |
| Sidewall | 5.31 in | 5.76 in | +0.44 in |
| Wheel | 17 in | 17 in | +0 in |
| Circumference | 86.8 in | 89.6 in | +2.8 in |
| Revs per mile | 729.9 | 707.3 | −22.7 |
Verdict: check clearance and speedometer
Over 3% and up to 5%: worth checking clearance, the speedometer and gearing before you buy. Going from 225/60R17 to 225/65R17 is a 3.2% increase in overall height (+0.89 in), and the vehicle sits about 0.44 in higher. The tire is the same width. The 3% rule of thumb comes from Discount Tire and 1010tires; it is not a guarantee of fit.
True speed and odometer
| Speedometer shows | You are really doing | Difference |
|---|---|---|
| 35 mph | 36.1 mph | +1.1 mph |
| 45 mph | 46.4 mph | +1.4 mph |
| 55 mph | 56.8 mph | +1.8 mph |
| 60 mph | 61.9 mph | +1.9 mph |
| 65 mph | 67.1 mph | +2.1 mph |
| 70 mph | 72.2 mph | +2.2 mph |
| 75 mph | 77.4 mph | +2.4 mph |
Odometer: 1,000 indicated miles is 1,032 real miles, and 10,000 is 10,321.
The math
225/60R17: 17 + 2 × (225 × 60% ÷ 25.4) = 27.63 in. 225/65R17: 17 + 2 × (225 × 65% ÷ 25.4) = 28.52 in. Change = 28.52 ÷ 27.63 − 1 = +3.21%. True speed at 60 = 60 × 28.52 ÷ 27.63 = 61.92 mph.
Check next
- Regear and RPM at cruise for this swap
- Speedometer and odometer correction
- Other sizes within ±3% of 225/60R17
Calculated from the size alone. Real tires vary a little by brand and model, and the loaded radius is a bit smaller. Confirm the wheel width range, clearance, load index and speed rating for your vehicle. See how to read a tire size, the load index chart and the speed rating chart.
Size pages: 225/60R17 · 225/65R17. More swaps: all tire size comparisons.