None, since there is no such thing as a killometre!
1 kilometre = 1000 metres so 12 kilometres = 12*1000 = 12,000 metres. Simple!
100 meters = 0.1 killometers
0.065
104,000
3642000
1.2km
140
4.8 kilometers=4,800 meters
6000 meters
247 meters = 0.247 kilometers
0.942 killometers!!
The prefix "kilo" means 1000.
Since there are 1000 meters in 1 kilometer, there are 10,000 meters in 10 kilometers.