265/65R17 vs 275/60R18 tire size
275/60R18 vs 265/65R17, diameter
+1.4% taller
- Speedometer
- 59.2 mph
- At a true 60 mph
- Diameter
- 30.99 in
- Was 30.56 in
- Revs per mile
- 651
- Was 660
- 3% guideline
- Within
Car built for 265/65R17, now on 275/60R18.
265/65R17 and 275/60R18
| Measure | 265/65R17 | 275/60R18 | Difference |
|---|---|---|---|
| Width, mm | 265 | 275 | +10 |
| Sidewall, % of width | 65 | 60 | -5 |
| Rim, in | 17 | 18 | +1 |
| Section height, in | 6.78 | 6.50 | -0.29 |
| Diameter, in | 30.56 | 30.99 | +0.43 (+1.4%) |
| Circumference, in | 96.0 | 97.4 | +1.3 |
| Revs per mile | 660 | 651 | -9 (-1.4%) |
Fitting 275/60R18 instead of 265/65R17
Within the usual 3% diameter guideline.
- Needs 18 in wheels.
Cars with 265/65R17
Cars with 275/60R18
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