275/30 R20 - Best tyres 2025 - market overview, tests, reviews

275/30 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 - 30 is height of the tyre, which is calculated as 30% of the tyre width (275mm), which means the sidewall height has 82.5 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 285/45 R21(2481.54 mm), 225/50 R16(1983.6 mm), 295/30 R22(2311.58 mm), 225/60 R16(2124.97 mm), 305/30 R19(2091.04 mm), 235/30 R20(2038.89 mm), 235/45 R19(2180.58 mm).