How many km^2 in 1 square millimeter? The answer is 1.0E-12. We assume you are converting between square kilometre and square millimetre. You can view more details on each measurement unit: km^2 or square millimeter The SI derived unit for area is the square meter. 1 square meter is equal to 1.0E-6 km^2, or 1000000 square millimeter. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between square kilometers and square millimeters. Type in your own numbers in the form to convert the units!
1 km^2 to square millimeter = 1000000000000 square millimeter
2 km^2 to square millimeter = 2000000000000 square millimeter
3 km^2 to square millimeter = 3000000000000 square millimeter
4 km^2 to square millimeter = 4000000000000 square millimeter
5 km^2 to square millimeter = 5000000000000 square millimeter
6 km^2 to square millimeter = 6000000000000 square millimeter
7 km^2 to square millimeter = 7000000000000 square millimeter
8 km^2 to square millimeter = 8000000000000 square millimeter
9 km^2 to square millimeter = 9000000000000 square millimeter
10 km^2 to square millimeter = 10000000000000 square millimeter
You can do the reverse unit conversion from square millimeter to km^2, or enter any two units below:
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