145/80 R14 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 - 80 is height of the tyre, which is calculated as 80% of the tyre width (145mm), which means the sidewall height has 116 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 215/35 R18
(1909.15 mm), 275/45 R18
(2213.88 mm), 215/50 R18
(2111.78 mm), 275/65 R18
(2559.46 mm), 215/65 R17
(2234.61 mm), 285/35 R20
(2222.68 mm), 225/35 R19
(2010.93 mm). There are multiple speed indexes available for summer tyres in 145/80 R14: T
(190km/h). The same goes for weight indexes: 76.
