360/70 R20 doesn't belong to the most popular dimensions for summer 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 - 70 is height of the tyre, which is calculated as 70% of the tyre width (360mm), which means the sidewall height has 252 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 205/40 R18
(1951.56 mm), 265/65 R18
(2518.61 mm), 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).
