We know that 1 km is equal to 0.621371 miles. So then we can use this conversion to get the amount of kilometers we have:
[tex] \frac{1km}{0.621371mi}*\frac{5.3575mi}{1} =8.62km [/tex]
Therefore when we make the conversion, we know that 5.3575 miles is equal to 8.62 km.