285/45 R20 - Best tyres 2025 - market overview, tests, reviews

285/45 R20 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 (285mm), which means the sidewall height has 128.25 mm. The wheel diameter is R20, which means it fits to a 20 inch/508mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 205/55 R17(2064.97 mm), 275/35 R18(2041.09 mm), 205/80 R16(2307.19 mm), 275/40 R22(2446.67 mm), 215/50 R17(2031.98 mm), 275/65 R17(2479.66 mm), 215/65 R16(2154.82 mm).