1800
20 kilometers is 20,000 meters.
A kilometer (check spelling) is 1000 meters. Kilo means thousand.
6,000 miles is about 9656km
80
123
988 kilomiters.
6.25 miles
9,600 kilomiters and 8,000 miles
104.6 km/h
4 km = 400,000 cm
4 kilomiters. 4 or 5 hours to get there