Centimetre

Centimetre is a metric unit of length, equal to one hundredth of a metre.

The centimetre is a unit of length in the International System of Units (SI).

1 centimetre = 10 millimetres
100 centimetres = 1 metre

Length

1 kilometre = 1000 metres
1 kilometre = 10 hectometres 
1 hectometre = 10 decametres
1 decametre = 10 metres
1 metre = 10 decimetres
1 decimetre = 10 centimetres
1 centimetre = 10 millimetres 

km – hm – dam –  m – dm – cm – mm

Abbreviations
millimetre mm
centimetre cm
metre m
hectometre hm
decametre  dam
kilometre km

Example:

The pencil is 9 centimetres long.