6.4 km as it's name implicates, is 6.4 kilometres.
64 km = 64 000 mTo convert from km to m, multiply by 1000.
5/8 of 64 km = 40 km
Answer: 64 km = 39.7677 mi.
64 km = 6400 m
64 km = 39.77 miles (approx)
0.064km x 1000=64 m the answer is 64m
Answer: 64 km/h = 39.7677 mph
1 mile is equivalent to 1.609344 km Therefore 64 miles = 64 x 1.609344 = 102.998016 km
6.4 miles = about 10.3 km (10.2998016 kilometers)
There are 1,000 meters (m) in a kilometer (km), so your 4.6 km in meters is 4.6 x 1,000 = 4,600 meters in the 4.6 km you had to start with.
Since a kilometre is an SI unit of measurement, the answer is 64 km.
1000m/km * 64km = 64000m