Which unit is larger kilometer micrometer centimeter or decimeter?

kilometer = 1000 meters

decameter = 10 meters

meter = 1/1000th kilometer ... approx 39.9 inches, just over a yard.

decimeter = 1/10th meter

centimeter = 1/100th meter

millimeter = 1/1000th meter

micrometer = 1/1000th millimeter - and -

micrometer = 1/1,000,000 meter - one millionth of a meter.

These are listed in size from largest to smallest.

You did not ask about Meter, Decameter or Meter.

By the way, in England it is called a Metre, not a Meter.