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 195/70 R16
(2134.4 mm), 265/50 R19
(2348.65 mm), 205/45 R17
(1936.16 mm), 265/70 R17
(2522.07 mm), 205/60 R15
(1969.78 mm), 275/35 R21
(2280.48 mm), 215/40 R16
(1817.1 mm). You can find 215/55 R18 on 16 car models - mainly .
