Comparison
275/55 R16 vs 225/55 R18
Compared to 275/55 R16, 225/55 R18 is 4.2 mm shorter and changes the speedometer reading by -0.59%.
Current Tire
275/55R16
New Tire
225/55R18
275/55 R16
225/55 R18
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
-4.2 mm
-0.59%
Speedometer at 100
99.4 km/h
-0.59% error
Ground clearance
-2.1 mm
ride height delta
Sidewall change
-27.5 mm
revs/km: 451.7
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/compare/275-55-r16-vs-225-55-r18Detailed comparison
| Metric | 275/55 R16 | 225/55 R18 | Difference |
|---|---|---|---|
| Overall diameter | 708.9 mm | 704.7 mm | -4.2 mm (-0.59%) |
| Sidewall height | 151.3 mm | 123.8 mm | -27.5 mm |
| Circumference | 2.227 m | 2.214 m | -13.2 mm |
| Revs / km | 449.0 | 451.7 | +2.7 |
| Ground clearance | reference | -2.1 mm | -2.1 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 99.4 km/h | -0.59 km/h |
Verdict: excellent
Within ±3% — speedometer, ABS and traction control should behave normally.
Back to
275/55 R16
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225/55 R18