›› Convert square millimetre to square gigametre

square millimeter
square gigameter

›› More information from the unit converter

How many square millimeter in 1 square gigameter? The answer is 1.0E+24.
We assume you are converting between square millimetre and square gigametre.
You can view more details on each measurement unit:
square millimeter or square gigameter
The SI derived unit for area is the square meter.
1 square meter is equal to 1000000 square millimeter, or 1.0E-18 square gigameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square millimeters and square gigameters.
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You can do the reverse unit conversion from square gigameter to square millimeter, or enter any two units below:

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