245/45 R18 - Best tyres 2025 - market overview, tests, reviews

245/45 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 - 45 is height of the tyre, which is calculated as 45% of the tyre width (245mm), which means the sidewall height has 110.25 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 205/50 R16(1920.77 mm), 275/30 R19(2034.5 mm), 205/65 R15(2034.18 mm), 275/40 R19(2207.28 mm), 215/40 R18(1976.69 mm), 275/50 R20(2459.87 mm), 215/55 R18(2179.32 mm). You can find 245/45 R18 on 29 car models - mainly Jaguar, Mercedes-Benz, BMW, Renault, Audi.