275/50R21 vs 295/40R22 tire size
295/40R22 vs 275/50R21, diameter
-1.7% shorter
- Speedometer
- 61.0 mph
- At a true 60 mph
- Diameter
- 31.29 in
- Was 31.83 in
- Revs per mile
- 645
- Was 634
- 3% guideline
- Within
Car built for 275/50R21, now on 295/40R22.
275/50R21 and 295/40R22
| Measure | 275/50R21 | 295/40R22 | Difference |
|---|---|---|---|
| Width, mm | 275 | 295 | +20 |
| Sidewall, % of width | 50 | 40 | -10 |
| Rim, in | 21 | 22 | +1 |
| Section height, in | 5.41 | 4.65 | -0.77 |
| Diameter, in | 31.83 | 31.29 | -0.54 (-1.7%) |
| Circumference, in | 100.0 | 98.3 | -1.7 |
| Revs per mile | 634 | 645 | +11 (+1.7%) |
Fitting 295/40R22 instead of 275/50R21
Within the usual 3% diameter guideline.
- Needs 22 in wheels.
- 20 mm wider. Check rubbing at full lock.
- Shorter sidewall: 0.8 in less.
Cars with 275/50R21
Cars with 295/40R22
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