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 235/30 R20
(2038.89 mm), 235/45 R19
(2180.58 mm), 235/55 R20
(2408.03 mm), 235/75 R15
(2304.36 mm), 160/60 R14
(1720.34 mm), 245/40 R18
(2052.09 mm), 165/65 R14
(1791.02 mm). You can find 215/55 R18 on 16 car models - mainly .
