225/65R18 vs 265/50R19 tire size
265/50R19 vs 225/65R18, diameter
-0.3% shorter
- Speedometer
- 60.2 mph
- At a true 60 mph
- Diameter
- 29.43 in
- Was 29.52 in
- Revs per mile
- 685
- Was 683
- 3% guideline
- Within
Car built for 225/65R18, now on 265/50R19.
225/65R18 and 265/50R19
| Measure | 225/65R18 | 265/50R19 | Difference |
|---|---|---|---|
| Width, mm | 225 | 265 | +40 |
| Sidewall, % of width | 65 | 50 | -15 |
| Rim, in | 18 | 19 | +1 |
| Section height, in | 5.76 | 5.22 | -0.54 |
| Diameter, in | 29.52 | 29.43 | -0.08 (-0.3%) |
| Circumference, in | 92.7 | 92.5 | -0.3 |
| Revs per mile | 683 | 685 | +2 (+0.3%) |
Fitting 265/50R19 instead of 225/65R18
Within the usual 3% diameter guideline.
- Needs 19 in wheels.
- 40 mm wider. Check rubbing at full lock.
- Shorter sidewall: 0.5 in less.
Cars with 225/65R18
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