275/60R18 vs 275/55R19 tire size
275/55R19 vs 275/60R18, diameter
-0.3% shorter
- Speedometer
- 60.2 mph
- At a true 60 mph
- Diameter
- 30.91 in
- Was 30.99 in
- Revs per mile
- 652
- Was 651
- 3% guideline
- Within
Car built for 275/60R18, now on 275/55R19.
275/60R18 and 275/55R19
| Measure | 275/60R18 | 275/55R19 | Difference |
|---|---|---|---|
| Width, mm | 275 | 275 | 0 |
| Sidewall, % of width | 60 | 55 | -5 |
| Rim, in | 18 | 19 | +1 |
| Section height, in | 6.50 | 5.95 | -0.54 |
| Diameter, in | 30.99 | 30.91 | -0.08 (-0.3%) |
| Circumference, in | 97.4 | 97.1 | -0.3 |
| Revs per mile | 651 | 652 | +2 (+0.3%) |
Fitting 275/55R19 instead of 275/60R18
Within the usual 3% diameter guideline.
- Needs 19 in wheels.
- Shorter sidewall: 0.5 in less.
Cars with 275/60R18
Cars with 275/55R19
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