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Home > Conversions (Area) > Conversion tables from/to square millimeter > sq mm to sq km Conversion Cheat Sheet (Interactive)
 To build or customize your cheat sheet (table below) adjust the values (From, Step, Decimals) in this form and hit the Update button. You could also enter the values to convert and print directly on the table From: Step: Decimals: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
 [Formula: sq km = sq mm x 0.000000000001]   [Printer friendly]  [Square kilometers to Square millimeters] sq mm   sq km
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# Square millimeters to Square kilometers Conversion Table

 sq mm  =  0.000000000001 sq km

# How to convert from Square millimeters to Square kilometers

Since 1 square millimeter is equal to 0.000000000001 square kilometers, we could say that n square millimeters are equal to 0.000000000001 times n square kilometers. In other words, we could use the following formula:

square kilometers = square millimeters x 0.000000000001

For example, let's say that we want to convert 2 square millimeters to square kilometers. Then, we just replace square millimeters in the abovementioned formula with 2:

square kilometers = 2 x 0.000000000001

That is, 2 square millimeters are equal to 2e-12 square kilometers.