Tire Size Comparison Visualizer
2282
18"
135
438 Revs/km
2156
18"
115
464 Revs/km
245
727
255
687
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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 | 9.4 | 28.2 | 47.0 | 65.8 | 84.6 | 103.4 | 122.2 | 141.0 |
| Speed Diff | -0.6 | -1.8 | -3.0 | -4.2 | -5.4 | -6.6 | -7.8 | -9.0 |
Ground Clearance Decreased by 20
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See how the 245/55r18 tire size compares to the 255/45r18
Making a decision before buying the right tire size? Or maybe you want new aftermarket tires?
The comparison charts above represent detailed calculations of the difference in size between 245/55r18 and 255/45r18 tires.
The resulting calculations of tire diameter and width, sidewall height, circumference and rim diameter are provided in the form of comparison table and visual graphics to better convey the difference between 245/55r18 and 255/45r18 tire sizes.
On top of that, given the fact that 245/55r18 is the original equipment tire size, you may also emulate the difference between your actual speed and speedometer readings after installing the 255/45r18 tires. Chances are high that you will want to calibrate your speedometer!
