If you mean "millimeter", the answer is 1000. The prefix "milli-" means 1/1000.
There are 1,000,000 millimeters in a kilometer.
One thousand millimeters make 1 meter.
There are 3.281 feet in one meter.
3
10
..
1 meter=10 decimeters
1 meter = 100 centimetres
That doesn't make sense. Square meter is 2D. Cubic meter is 3D. To attempt to answer your question... A square meter is one meter long and one meter wide. A cubic meter is one meter long, one meter wide, and one meter tall.
One thousandth of kilometer makes one meter
(1/1000) meter makes one millimeter.
100cm