Comparison
335/55 R16 vs 255/55 R18
Compared to 335/55 R16, 255/55 R18 is 37.2 mm shorter and changes the speedometer reading by -4.80%.
Current Tire
335/55R16
New Tire
255/55R18
335/55 R16
255/55 R18
Ground line · scaled comparison
Slight Difference
Within ±5% — usable, recalibration recommended
Diameter change
-37.2 mm
-4.80%
Speedometer at 100
95.2 km/h
-4.80% error
Ground clearance
-18.6 mm
ride height delta
Sidewall change
-44.0 mm
revs/km: 431.5
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/compare/335-55-r16-vs-255-55-r18Detailed comparison
| Metric | 335/55 R16 | 255/55 R18 | Difference |
|---|---|---|---|
| Overall diameter | 774.9 mm | 737.7 mm | -37.2 mm (-4.80%) |
| Sidewall height | 184.3 mm | 140.3 mm | -44.0 mm |
| Circumference | 2.434 m | 2.318 m | -116.9 mm |
| Revs / km | 410.8 | 431.5 | +20.7 |
| Ground clearance | reference | -18.6 mm | -18.6 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 95.2 km/h | -4.80 km/h |
Verdict: warning
Between 3% and 5% — noticeable speedometer drift; recalibration may be advisable.
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335/55 R16
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255/55 R18