215/65R17 vs 245/60R17
245/60R17 is taller than 215/65R17 by 2.04% — a diameter difference of 0.57″.
What changes between 215/65R17 and 245/60R17
Switching from 215/65R17 to 245/60R17 changes overall diameter by +2.04%, a taller tire by 0.57 inches. This lands inside the ±3% fitment safe zone, so most vehicles will accept the swap without rubbing, speedometer recalibration, or ABS/TPMS complications. Section width moves by +1.19″ (215mm → 245mm), which affects contact patch and fender-well clearance. Sidewall height shifts by +0.29″: a taller sidewall softens ride quality and adds off-road bump protection, with some loss of steering crispness. Revs per mile moves by -14, which translates directly to speedometer error — at an indicated 65 mph, actual speed becomes 66.3 mph. Both sizes share the same 17″ rim, so no wheel change is required — this is a pure tire-only swap.
| Spec | 215/65R17 | 245/60R17 |
|---|---|---|
| Overall diameter | 28″ | 28.57″ |
| Section width | 8.46″ (215 mm) | 9.65″ (245 mm) |
| Sidewall height | 5.5″ (65%) | 5.79″ (60%) |
| Rim diameter | 17″ | 17″ |
| Circumference | 87.98″ | 89.77″ |
| Revs per mile | 720 | 706 |
Interactive comparison
275/65R18 or "33" for inch aliases215/65R17
- Diameter
- 28″ / 711.3mm
- Section Width
- 8.46″
- Sidewall
- 5.5″ / 139.75mm
- Circumference
- 87.98″
- Revs/Mile
- 720
245/60R17
- Diameter
- 28.57″ / 725.8mm
- Section Width
- 9.65″
- Sidewall
- 5.79″ / 147mm
- Circumference
- 89.77″
- Revs/Mile
- 706
Speedometer & Diameter Impact
Wider tire — verify wheel widthAt an indicated 60 mph, your actual speed is 61.22 mph (98.53 km/h). Your speedometer reads 2.04% low versus actual speed.