Tire size comparison in inches
225/55 R17 vs 245/45 R18

Original tire size
/
R
/
R
New tire size
CM INCHES

Parameter Old New Difference
Overall diameter: - - -
Section width - - -
Circumference - - -
Sidewall height - - -
Revs per mile: - - -
Clearance -
Result: -
If your speedometer reads:
Real speed is:
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Size difference between 225/55 R17 and 245/45 R18 tires.

In the tire comparison table above, you can see a detailed calculation of the size difference between 225/55 R17 and 245/45 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 225/55 R17 is on top, and tire with size 245/45 R18 below. Both in the table and in the graph, the tires are compared according to the following indicators: overall diameter, section width, circumference, sidewall height and clearance. Also, the online application calculates the difference in real speed and speedometer readings if the difference between tire 225/55 R17 and tire 245/45 R18 is significant. Calculate the difference in inches.

If you want to compare other tire sizes, then select their sizes in the drop-down fields and click on the green button. The online wheel calculator will then display the new results.

Infographics

Side comparison Frontal comparison
225/55 R17 vs 245/45 R18 side comparison of car tires in inches 225/55 R17 vs 245/45 R18 frontal comparison of car tires in inches

See also:

215/55 R17
225/50 R17
215/60 R16
225/60 R17
215/60 R17
215/65 R16
235/55 R17
235/45 R18
245/40 R18
225/45 R18
225/50 R18
235/50 R18
245/50 R18