215/70 R15 doesn't belong to the most popular dimensions for allround tyres - there are 12 tyre models available, which can be compared to 165/60 R15, 185/55 R14, 170/60 R17. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (215mm), which means the sidewall height has 150.5 mm. The wheel diameter is R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is 2142.57 mm, which is very similar to 285/35 R19(2142.88 mm), 225/50 R18(2143.19 mm), 185/75 R16(2148.54 mm), 245/35 R20(2134.71 mm), 195/70 R16(2134.4 mm), 225/55 R17(2134.08 mm), 295/30 R20(2151.99 mm). There are multiple speed indexes available for allround tyres in 215/70 R15: H(210km/h), R(170km/h), S(180km/h), T(190km/h). The same goes for weight indexes: 98, 109. You can find 215/70 R15 on 9 car models - mainly CITROËN, Daihatsu, Fiat, Hyundai, Isuzu.