255/45R22 vs 275/45R22 tire size
275/45R22 vs 255/45R22, diameter
+2.3% taller
- Speedometer
- 58.7 mph
- At a true 60 mph
- Diameter
- 31.74 in
- Was 31.04 in
- Revs per mile
- 635
- Was 650
- 3% guideline
- Within
Car built for 255/45R22, now on 275/45R22.
255/45R22 and 275/45R22
| Measure | 255/45R22 | 275/45R22 | Difference |
|---|---|---|---|
| Width, mm | 255 | 275 | +20 |
| Sidewall, % of width | 45 | 45 | 0 |
| Rim, in | 22 | 22 | 0 |
| Section height, in | 4.52 | 4.87 | +0.35 |
| Diameter, in | 31.04 | 31.74 | +0.71 (+2.3%) |
| Circumference, in | 97.5 | 99.7 | +2.2 |
| Revs per mile | 650 | 635 | -15 (-2.2%) |
Fitting 275/45R22 instead of 255/45R22
Within the usual 3% diameter guideline.
- 20 mm wider. Check rubbing at full lock.
Cars with 255/45R22
Cars with 275/45R22
What this cannot tell you
Diameter within 3% is a common shop guideline, not a maker spec.
Load index, offset and clearance are not in this data.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ