Tire Size Comparison Visualizer
2062
17"
113
485 Revs/km
2051
18"
98
488 Revs/km
225
657
245
653
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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 | 9.9 | 29.7 | 49.5 | 69.3 | 89.1 | 108.9 | 128.7 | 148.5 |
| Speed Diff | -0.1 | -0.3 | -0.5 | -0.7 | -0.9 | -1.1 | -1.3 | -1.5 |
Ground Clearance Decreased by 2
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See how the 225/50r17 tire size compares to the 245/40r18
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 225/50r17 and 245/40r18 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 225/50r17 and 245/40r18 tire sizes.
On top of that, given the fact that 225/50r17 is the original equipment tire size, you may also emulate the difference between your actual speed and speedometer readings after installing the 245/40r18 tires. Chances are high that you will want to calibrate your speedometer!
