In the tire comparison table above, you can see a detailed calculation of the size difference between 275/40 R18 and 245/45 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 275/40 R18 is on top, and tire with size 245/45 R18 below. Both in the table and in the graph, the tires are
225/40-R18 tires are 0.82 inches (20.9 mm) larger in diameter than 205/45-R17 tires and the speedometer difference is 3.3% The first number 225 is the tire width in millimeters. The 2nd number 45 is used to calculate the sidewall height or "aspect ratio", by percentage. So, the sidewall height of a 225/45 R 18 tire is 60% of 225 = 192. The 3rd number 18 (generally preceded by an "R") is Rim Diameter in inches.
In the tire comparison table above, you can see a detailed calculation of the size difference between 225/45 R18 and 235/40 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 225/45 R18 is on top, and tire with size 235/40 R18 below. Both in the table and in the graph, the tires are
The calculation results are presented in the form of visual infographics, on which tire with size 225/50 R18 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.
245/75 R17 vs 225/70 R19; 225/40 R18 vs 225/45 R17; 225/60 R17 vs 215/65 R16; 225/55 R17 vs 215/55 R17; 265/70 R18 vs 265/75 R17; 165/65 R17 vs 165/55 R20; UYRvi. 480 458 167 117 33 122 143 60 381

225 45 r17 vs 225 40 r18