255/55r20 vs 245/50r20 Tire Comparison Table

Tire Size Comparison Visualizer
Tire 1 Side View
Tire 1 Wheel
2476
20"
140
404 Revs/km
Tire 2 Side View
Tire 2 Wheel
2364
20"
123
423 Revs/km
Tire 1 Front View
255
789
Tire 2 Front View
245
753
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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 9.528.547.566.585.5104.5123.5142.5
Speed Diff-0.5-1.5-2.5-3.5-4.5-5.5-6.5-7.5

Ground Clearance Decreased by 18

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Check out how the 255/55r20 differs in size from the 245/50r20

Would you like to upsize your tires?

The visuals and tables above illustrate the difference in dimensions between 255/55r20 and 245/50r20 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 255/55r20 and 245/50r20 tire sizes.

Besides, considering that 255/55r20 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 245/50r20 tires. It is strongly recommended to calibrate speedometer every time you upsize or downsize your tires.

Other sizes often compared:

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