How many centimeters are there in kilometer?

Answer 1

Well there is 1000 metres in a kilometre, and a 100 centimetres in a metre therefore 1000x100 = 100000.

If you know the meaning of the prefixes it becomes so easy kilo=1000, centi=100th, milli=1000th, etc.

Answer 2

1 kilometer=100,000 centimeters