215/55 R18 doesn't belong to the most popular dimensions for tyres - there are tyre models available, which can be compared to
325/30 R21,
155/60 R15,
155/65 R13. Let's break down the sizing - 55 is height of the tyre, which is calculated as 55% of the tyre width (215mm), which means the sidewall height has 118.25 mm. The wheel diameter is R18, which means it fits to a 18 inch/457.2mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 185/55 R16
(1916.06 mm), 255/50 R19
(2317.24 mm), 185/75 R16
(2148.54 mm), 255/65 R17
(2397.98 mm), 195/50 R16
(1889.35 mm), 265/35 R18
(2019.1 mm), 195/65 R15
(1993.34 mm). You can find 215/55 R18 on 16 car models - mainly .
