!
Rule to convert the units
When you go down the scale you will need to multiply
When you go up the scale you will need to divide
KILOMETER
The number of steps will give you the power of 10 you need to use
HECTAMETER
DECAMETER
METER
DECIMETER
CENTIMETER
MILLIMETER
MILLIMETER
MicroMETER
or Micron
The scale keeps on going:
Namometer, Angstrom etc