235/55 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 (235mm), which means the sidewall height has 129.25 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 235/65 R18
(2396.09 mm), 155/70 R19
(2197.86 mm), 245/35 R21
(2214.51 mm), 165/60 R15
(1818.98 mm), 245/45 R19
(2208.85 mm), 170/80 R15
(2051.46 mm), 245/70 R16
(2354.31 mm). You can find 235/55 R18 on 20 car models - mainly .
