23545R18, 235-40R18, 245-45R18 tire size comparison with Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. 4.40 mph diff 4.40 mph diff. Speed Variance. 3.64% too fast. Diameter Variance-3.51 %: Show
The245 40r18 has a diameter of 25.72 inches, while the 225 40r18 has a diameter of 25.09 inches. This means that the 245 40r18 is slightly larger than the 225 40r18. The larger
Thedifference in sizes and parameters between the 235/40 R18 tire and 235/45 R18 tire. Detailed calculations and graphics. Calculate the difference in inches.
Thecalculation results are presented in the form of visual infographics, on which tire with size 245/60 R18 is on top, and tire with size 265/60 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.
The245 section width also raises the rim to 0.45 * 245 = 110 mm height above the ground, so the edge of the rim gains 4 mm in height from the ground compared to the stock 235/45R18 tire. Overall diameter of the tire will increase, however, from 26.3" to 26.7", an increase of 1.5 %.
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