215/65R16 vs 265/55R16
265/55R16 is taller than 215/65R16 by 1.75% — a diameter difference of 0.48″.
What changes between 215/65R16 and 265/55R16
Switching from 215/65R16 to 265/55R16 changes overall diameter by +1.75%, a taller tire by 0.48 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 +1.97″ (215mm → 265mm), which affects contact patch and fender-well clearance. Sidewall height shifts by +0.24″: a taller sidewall softens ride quality and adds off-road bump protection, with some loss of steering crispness. Revs per mile moves by -13, which translates directly to speedometer error — at an indicated 65 mph, actual speed becomes 66.1 mph. Both sizes share the same 16″ rim, so no wheel change is required — this is a pure tire-only swap.
| Spec | 215/65R16 | 265/55R16 |
|---|---|---|
| Overall diameter | 27″ | 27.48″ |
| Section width | 8.46″ (215 mm) | 10.43″ (265 mm) |
| Sidewall height | 5.5″ (65%) | 5.74″ (55%) |
| Rim diameter | 16″ | 16″ |
| Circumference | 84.84″ | 86.32″ |
| Revs per mile | 747 | 734 |
Interactive comparison
275/65R18 or "33" for inch aliases215/65R16
- Diameter
- 27″ / 685.9mm
- Section Width
- 8.46″
- Sidewall
- 5.5″ / 139.75mm
- Circumference
- 84.84″
- Revs/Mile
- 747
265/55R16
- Diameter
- 27.48″ / 697.9mm
- Section Width
- 10.43″
- Sidewall
- 5.74″ / 145.75mm
- Circumference
- 86.32″
- Revs/Mile
- 734
Speedometer & Diameter Impact
Wider tire — verify wheel widthAt an indicated 60 mph, your actual speed is 61.05 mph (98.25 km/h). Your speedometer reads 1.75% low versus actual speed.