185/75 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 - 75 is height of the tyre, which is calculated as 75% of the tyre width (185mm), which means the sidewall height has 138.75 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 160/70 R17
(2060.26 mm), 245/45 R17
(2049.26 mm), 165/80 R13
(1866.73 mm), 245/60 R18
(2359.96 mm), 175/65 R15
(1911.66 mm), 255/35 R19
(2076.91 mm), 185/50 R16
(1857.94 mm).
