255/45r18 vs 245/50r18 Tire Comparison Table
Tire Size Comparison Visualizer
2156
18"
115
464 Revs/km
2205
18"
123
454 Revs/km
255
687
245
702
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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 | 10.2 | 30.6 | 51.0 | 71.4 | 91.8 | 112.2 | 132.6 | 153.0 |
| Speed Diff | 0.2 | 0.6 | 1.0 | 1.4 | 1.8 | 2.2 | 2.6 | 3.0 |
Ground Clearance Increased by 7.5
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Check out how the 255/45r18 differs in size from the 245/50r18
Would you like to upsize your tires?
The visuals and tables above illustrate the difference in dimensions between 255/45r18 and 245/50r18 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 255/45r18 and 245/50r18 tire sizes.
Besides, considering that 255/45r18 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 245/50r18 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.