Inthe tire comparison table above, you can see a detailed calculation of the size difference between 255/60 R18 and 255/65 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 255/60 R18 is on top, and tire with size 255/65 R18 below. Both in the table and in the graph, the tires are Inthe tire comparison table above, you can see a detailed calculation of the size difference between 235/65 R18 and 235/60 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 235/65 R18 is on top, and tire with size 235/60 R18 below. Both in the table and in the graph, the tires are Thecalculation results are presented in the form of visual infographics, on which tire with size 255/55 R18 is on top, and tire with size 225/60 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. Thecalculation results are presented in the form of visual infographics, on which tire with size 205/55 R16 is on top, and tire with size 225/40 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. 22560-R18 tires are 1.32 inches (33.5 mm) larger in diameter than 215/55-R18 tires and the speedometer difference is 4.6%. Thecalculation results are presented in the form of visual infographics, on which tire with size 215/55 R18 is on top, and tire with size 225/60 R16 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 235/55 R18 and tire 225/60 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. Inthe tire comparison table above, you can see a detailed calculation of the size difference between 265/60 R18 and 245/60 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with 22560-R16 tires are 1.11 inches (28.3 mm) smaller in diameter than 225/55-R18 tires and the speedometer difference is 4.0%. 22555 R18 vs 225/60 R18 comparison results: Speedometer difference Welcome to our handy wheel and tire size calculator! Put your current tire size (width, aspect ratio, and up1Fr.