215/35 R16 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 - 35 is height of the tyre, which is calculated as 35% of the tyre width (215mm), which means the sidewall height has 75.25 mm. The wheel diameter is R16, which means it fits to a 16 inch/406.4mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 185/55 R16
(1916.06 mm), 255/45 R20
(2316.92 mm), 185/75 R16
(2148.54 mm), 255/65 R16
(2318.18 mm), 195/50 R16
(1889.35 mm), 265/30 R22
(2255.04 mm), 195/65 R15
(1993.34 mm).
