This can be regarded as a very popular question among a lot of kids who study in primary school. Questions of this type are frequently observed in their examinations, assignments, and homework. Here, we will be discussing how to convert 20km to miles. In the case of the older children too, these conversions are often required while solving their physics and chemistry related numericals. Thus, it is appropriate to say that these conversions are very important academically. But at the same time, we have to keep in mind that these conversions are also very helpful in our everyday lives.