225/60R18 vs 235/50R19 tire size
235/50R19 vs 225/60R18, diameter
-1.3% shorter
- Speedometer
- 60.8 mph
- At a true 60 mph
- Diameter
- 28.25 in
- Was 28.63 in
- Revs per mile
- 714
- Was 704
- 3% guideline
- Within
Car built for 225/60R18, now on 235/50R19.
225/60R18 and 235/50R19
| Measure | 225/60R18 | 235/50R19 | Difference |
|---|---|---|---|
| Width, mm | 225 | 235 | +10 |
| Sidewall, % of width | 60 | 50 | -10 |
| Rim, in | 18 | 19 | +1 |
| Section height, in | 5.31 | 4.63 | -0.69 |
| Diameter, in | 28.63 | 28.25 | -0.38 (-1.3%) |
| Circumference, in | 89.9 | 88.8 | -1.2 |
| Revs per mile | 704 | 714 | +9 (+1.3%) |
Fitting 235/50R19 instead of 225/60R18
Within the usual 3% diameter guideline.
- Needs 19 in wheels.
- Shorter sidewall: 0.7 in less.
Cars with 225/60R18
Cars with 235/50R19
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