205/55r16 vs 255/55r18 Tire Size Comparison

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205/55r16 vs 255/55r18 Tire Size Comparison
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Tire Size Comparison Visualizer
Tire 1 Side View
Tire 1 Wheel
1984
16"
113
504 Revs/km
Tire 2 Side View
Tire 2 Wheel
2316
18"
140
432 Revs/km
Tire 1 Front View
205
632
Tire 2 Front View
255
738
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Speedometer Error
(Set Size1 to OEM Size)

Speed 10 km/h30 km/h50 km/h70 km/h90 km/h110 km/h130 km/h150 km/h
Actual 11.735.158.581.9105.3128.7152.1175.5
Speed Diff1.75.18.511.915.318.722.125.5

Ground Clearance Increased by 53

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See how the 205/55r16 tire size compares to the 255/55r18

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 205/55r16 and 255/55r18 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 205/55r16 and 255/55r18 tire sizes.

On top of that, given the fact that 205/55r16 is the original equipment tire size, you may also emulate the difference between your actual speed and speedometer readings after installing the 255/55r18 tires. Chances are high that you will want to calibrate your speedometer!

Other sizes often compared:

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