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 225/60 R15(2045.18 mm), 305/25 R20(2075.02 mm), 225/75 R16(2337.03 mm), 235/45 R18(2100.78 mm), 235/55 R19(2328.23 mm), 235/70 R16(2310.33 mm), 160/60 R14(1720.34 mm). You can find 245/45 R18 on 29 car models - mainly Jaguar, Mercedes-Benz, BMW, Renault, Audi.