275/50R22 vs 285/40R23 tire size
285/40R23 vs 275/50R22, diameter
-2.6% shorter
- Speedometer
- 61.6 mph
- At a true 60 mph
- Diameter
- 31.98 in
- Was 32.83 in
- Revs per mile
- 631
- Was 614
- 3% guideline
- Within
Car built for 275/50R22, now on 285/40R23.
275/50R22 and 285/40R23
| Measure | 275/50R22 | 285/40R23 | Difference |
|---|---|---|---|
| Width, mm | 275 | 285 | +10 |
| Sidewall, % of width | 50 | 40 | -10 |
| Rim, in | 22 | 23 | +1 |
| Section height, in | 5.41 | 4.49 | -0.93 |
| Diameter, in | 32.83 | 31.98 | -0.85 (-2.6%) |
| Circumference, in | 103.1 | 100.5 | -2.7 |
| Revs per mile | 614 | 631 | +16 (+2.7%) |
Fitting 285/40R23 instead of 275/50R22
Within the usual 3% diameter guideline.
- Needs 23 in wheels.
- Shorter sidewall: 0.9 in less.
Cars with 275/50R22
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