TireSize and Comparison Calculator calculate tire diameter from code and compare speedometer differences for tire sizes. The first number 215 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 215/45 R 18 tire is 60% of 215 = 192. 24540-R18 tires are 0.1 inches (2.5 mm) larger in diameter than 215/45-R18 tires and the speedometer difference is 0.4%. TechScroll : Start Over Select Another Size Expanded View View Mode: 215-40R18, 225-40R18 tire size comparison with Size calculator. Use our tire Tools& Tech: 215-45R18 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. Newtire size / R Calculate 225/40 R18 vs 225/45 R18 comparison results: Speedometer difference Welcome to our handy wheel and tire size calculator! Put your current tire Thecalculation results are presented in the form of visual infographics, on which tire with size 215/45 R18 is on top, and tire with size 245/40 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. Inthe tire comparison table above, you can see a detailed calculation of the size difference between 225/55 R18 and 235/55 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 225/55 R18 is on top, and tire with size 235/55 R18 below. Both in the table and in the graph, the tires are Belowis the list of all possible alternatives to P 225/40 R18 within delta of no more than three percent which means you can shift to wider wheels with smaller aspect ratio and vice versa. 205/40 R18 vs 225/40 R18: 225/45 R18 vs 225/40 R18: P 215/40 R18, rear P 225/40 R18 9067 views; 2004 Nissan 350Z. Work Emotion Cr-Kai 18x9.5 -13 Vay Nhanh Fast Money.

215 45 r18 vs 225 40 r18