205/65 R14 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 - 65 is height of the tyre, which is calculated as 65% of the tyre width (205mm), which means the sidewall height has 133.25 mm. The wheel diameter is R14, which means it fits to a 14 inch/355.6mm diameter wheel. The total circumference of the tyre is mm, which is very similar to 215/40 R16(1817.1 mm), 275/45 R19(2293.68 mm), 215/55 R16(2019.73 mm), 275/70 R16(2486.26 mm), 215/70 R15(2142.57 mm), 285/35 R21(2302.47 mm), 225/35 R20(2090.73 mm).