245/50 R18 - Best tyres 2025 - market overview, tests, reviews

245/50 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 - 50 is height of the tyre, which is calculated as 50% of the tyre width (245mm), which means the sidewall height has 122.5 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 R16(2236.5 mm), 155/70 R13(1719.08 mm), 245/35 R19(2054.92 mm), 165/60 R14(1739.19 mm), 245/45 R17(2049.26 mm), 170/60 R17(1997.42 mm), 245/65 R17(2357.14 mm). You can find 245/50 R18 on 10 car models - mainly BMW, Infiniti, Cadillac, Jaguar, Mercedes-Benz.