A millionth of a square kilometre equals one square metre.
You can convert kilometers to meters, or square kilometers to square meters. But you can't convert kilometers (a linear unit) to square meters (a square unit).
Well, darling, 400,000 square meters is equal to 0.4 square kilometers. So, to answer your question, there are 0.4 squared kilometers in 400,000 square meters. Math doesn't have to be a headache, honey!
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3250 square meters = 0.00325 square kilometers
There are 10,000 square meters in a hectare, which is equal to 0.01 square kilometers.
423,000 kilometers is equal to 423,000,000 meters
2.5 kilometers
7 meters=0.007 kilometers
The units are incompatible. Metres mare a unit of linear measure. Square units are for measuring area.
49 kilometers = 49,000 meters
2700 meters is equal to 2.7 kilometers, as there are 1000 meters in a kilometer.
2,58 kilometers