265/50R22 vs 285/40R23 tire size
285/40R23 vs 265/50R22, diameter
-1.4% shorter
- Speedometer
- 60.9 mph
- At a true 60 mph
- Diameter
- 31.98 in
- Was 32.43 in
- Revs per mile
- 631
- Was 622
- 3% guideline
- Within
Car built for 265/50R22, now on 285/40R23.
265/50R22 and 285/40R23
| Measure | 265/50R22 | 285/40R23 | Difference |
|---|---|---|---|
| Width, mm | 265 | 285 | +20 |
| Sidewall, % of width | 50 | 40 | -10 |
| Rim, in | 22 | 23 | +1 |
| Section height, in | 5.22 | 4.49 | -0.73 |
| Diameter, in | 32.43 | 31.98 | -0.46 (-1.4%) |
| Circumference, in | 101.9 | 100.5 | -1.4 |
| Revs per mile | 622 | 631 | +9 (+1.4%) |
Fitting 285/40R23 instead of 265/50R22
Within the usual 3% diameter guideline.
- Needs 23 in wheels.
- 20 mm wider. Check rubbing at full lock.
- Shorter sidewall: 0.7 in less.
Cars with 265/50R22
Cars with 285/40R23
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