205/55 R15 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 - 55 is height of the tyre, which is calculated as 55% of the tyre width (205mm), which means the sidewall height has 112.75 mm. The wheel diameter is R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 225/50 R17
(2063.4 mm), 295/30 R22
(2311.58 mm), 225/60 R17
(2204.77 mm), 305/30 R19
(2091.04 mm), 235/35 R19
(2032.92 mm), 235/45 R20
(2260.38 mm), 235/60 R16
(2162.67 mm).
