215/65 R18 doesn't belong to the most popular dimensions for summer tyres - there are 0 tyre models available, which can be compared to
155/60 R15,
170/60 R17,
160/60 R14. Let's break down the sizing - 65 is height of the tyre, which is calculated as 65% of the tyre width (215mm), which means the sidewall height has 139.75 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 2314.41 mm, which is very similar to 235/65 R17
(2316.3 mm), 285/40 R20
(2312.21 mm), 255/40 R21
(2316.61 mm), 255/45 R20
(2316.92 mm), 255/50 R19
(2317.24 mm), 295/30 R22
(2311.58 mm), 255/55 R18
(2317.55 mm).
