255/50r17 vs 245/45r17 Tire Comparison Table
Tire Size Comparison Visualizer
2157
17"
128
464 Revs/km
2048
17"
110
488 Revs/km
255
687
245
652
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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 | 9.5 | 28.5 | 47.5 | 66.5 | 85.5 | 104.5 | 123.5 | 142.5 |
| Speed Diff | -0.5 | -1.5 | -2.5 | -3.5 | -4.5 | -5.5 | -6.5 | -7.5 |
Ground Clearance Decreased by 17.5
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Check out how the 255/50r17 differs in size from the 245/45r17
Would you like to upsize your tires?
The visuals and tables above illustrate the difference in dimensions between 255/50r17 and 245/45r17 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 255/50r17 and 245/45r17 tire sizes.
Besides, considering that 255/50r17 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 245/45r17 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.