How many are in 1 square millimetre?
The answer is 1.0E-8.
We assume you are converting between are and square millimetre.
You can view more details on each measurement unit: are or
square millimetre
The SI derived unit for area is the square meter.
1 square meter is equal to 0.01 are, or 1000000 square millimetre.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between ares and square millimeters.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of are to square millimetre

1 are to square millimetre = 100000000 square millimetre

2 are to square millimetre = 200000000 square millimetre

3 are to square millimetre = 300000000 square millimetre

4 are to square millimetre = 400000000 square millimetre

5 are to square millimetre = 500000000 square millimetre

6 are to square millimetre = 600000000 square millimetre

7 are to square millimetre = 700000000 square millimetre

8 are to square millimetre = 800000000 square millimetre

9 are to square millimetre = 900000000 square millimetre

10 are to square millimetre = 1000000000 square millimetre

››Want other units?

You can do the reverse unit conversion from
square millimetre to are, or enter any two units below:

An are or (symbol a) is a unit of surface area, equivalent to 100 square metres. The are is most familiar through its derived unit, the hectare. Neither the are nor the hectare are SI units, although they are both accepted for use with SI units.

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