8,851.8 kilometers is 5,500.3 miles.
12.6 kilometers long
it is exactly 4.8280 kilometers
6300.58 kilometers.
The Thames is 346 kilometers
The Ohio River is 981 miles long(1,579 kilometers)
4 kilometers = 2.485 miles (rounded)
12 kilometers is 7.6 miles.
It is 7500 kilometers long.
21 kilometers is 13.05 miles.
29 kilometers is 18.02 miles.
1.1 kilometers is 0.68 miles.
5 kilometers is 3.11 miles.