215/40 R16 - Best summer tyres 2025 - market overview, tests, reviews

215/40 R16 doesn't belong to the most popular dimensions for summer tyres - there are 8 tyre models available, which can be compared to 160/70 R17, 205/40 R17, 195/40 R17. Let's break down the sizing - 40 is height of the tyre, which is calculated as 40% of the tyre width (215mm), which means the sidewall height has 86 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 1817.1 mm, which is very similar to 155/80 R13(1816.47 mm), 165/60 R15(1818.98 mm), 185/60 R14(1814.58 mm), 195/50 R15(1809.56 mm), 175/70 R13(1807.04 mm), 195/45 R16(1828.09 mm), 175/65 R14(1831.86 mm). There are multiple speed indexes available for summer tyres in 215/40 R16: W(270km/h). The same goes for weight indexes: 86.