How many square micron in 1 square kilometer?
The answer is 1.0E+18.
We assume you are converting between square micron and square kilometre.
You can view more details on each measurement unit: square micron or
square kilometer
The SI derived unit for area is the square meter.
1 square meter is equal to 1000000000000 square micron, or 1.0E-6 square kilometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square microns and square kilometers.
Type in your own numbers in the form to convert the units!

A square micron is defined as the area of a square
with sides one micron in length.

The definition of a micron is as follows:

a metric unit of length equal to one millionth of a meter

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