225/70 R16 doesn't belong to the most popular dimensions for winter tyres - there are 26 tyre models available, which can be compared to 165/65 R15, 165/65 R14, 155/70 R13. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (225mm), which means the sidewall height has 157.5 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 2266.34 mm, which is very similar to 195/55 R20(2269.8 mm), 265/40 R20(2261.95 mm), 235/45 R20(2260.38 mm), 265/35 R21(2258.49 mm), 225/65 R17(2275.46 mm), 265/30 R22(2255.04 mm), 215/80 R15(2277.65 mm). There are multiple speed indexes available for winter tyres in 225/70 R16: H(210km/h), Q(160km/h), S(180km/h), T(190km/h). The same goes for weight indexes: 102, 103, 107. You can find 225/70 R16 on 7 car models - mainly Jeep, Hyundai, Kia, Opel, Suzuki.