275/65R20 vs 295/60R20
295/60R20 is shorter than 275/65R20 by 0.40% — a diameter difference of 0.13″.
What changes between 275/65R20 and 295/60R20
Switching from 275/65R20 to 295/60R20 changes overall diameter by -0.40%, a shorter tire by 0.13 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 +0.78″ (275mm → 295mm), which affects contact patch and fender-well clearance. Sidewall height shifts by -0.07″: a shorter sidewall sharpens steering response at the cost of ride comfort and rim protection. Revs per mile moves by +2, which translates directly to speedometer error — at an indicated 65 mph, actual speed becomes 64.7 mph. Both sizes share the same 20″ rim, so no wheel change is required — this is a pure tire-only swap.
| Spec | 275/65R20 | 295/60R20 |
|---|---|---|
| Overall diameter | 34.07″ | 33.94″ |
| Section width | 10.83″ (275 mm) | 11.61″ (295 mm) |
| Sidewall height | 7.04″ (65%) | 6.97″ (60%) |
| Rim diameter | 20″ | 20″ |
| Circumference | 107.05″ | 106.62″ |
| Revs per mile | 592 | 594 |
Interactive comparison
275/65R18 or "33" for inch aliases275/65R20
- Diameter
- 34.07″ / 865.5mm
- Section Width
- 10.83″
- Sidewall
- 7.04″ / 178.75mm
- Circumference
- 107.05″
- Revs/Mile
- 592
295/60R20
- Diameter
- 33.94″ / 862mm
- Section Width
- 11.61″
- Sidewall
- 6.97″ / 177mm
- Circumference
- 106.62″
- Revs/Mile
- 594
Speedometer & Diameter Impact
At an indicated 60 mph, your actual speed is 59.76 mph (96.17 km/h). Your speedometer reads 0.40% high versus actual speed.