255/55r18 vs 275/65r18 Tire Comparison Table
Tire Size Comparison Visualizer
2316
18"
140
432 Revs/km
2558
18"
179
391 Revs/km
255
738
275
815
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Speedometer Error
(Set Size1 to OEM Size)
(Set Size1 to OEM Size)
| Speed | 10 km/h | 30 km/h | 50 km/h | 70 km/h | 90 km/h | 110 km/h | 130 km/h | 150 km/h |
|---|---|---|---|---|---|---|---|---|
| Actual | 11.0 | 33.0 | 55.0 | 77.0 | 99.0 | 121.0 | 143.0 | 165.0 |
| Speed Diff | 1.0 | 3.0 | 5.0 | 7.0 | 9.0 | 11.0 | 13.0 | 15.0 |
Ground Clearance Increased by 38.5
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Check out how the 255/55r18 differs in size from the 275/65r18
Would you like to upsize your tires?
The visuals and tables above illustrate the difference in dimensions between 255/55r18 and 275/65r18 tires.
By looking at a visual representation of the differences in tire diameter, width, sidewall height, circumference, revs per mile, and speed difference, it easy to compare the 255/55r18 and 275/65r18 tire sizes.
Besides, considering that 255/55r18 is the factory size, your vehicle’s speedometer shows the correct speed. Check out the chart with the possible speed difference should you decide to go with the 275/65r18 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.