## Convert square millimicron to hectare

 square millimicron hectare

How many square millimicron in 1 hectare? The answer is 1.0E+22.
We assume you are converting between square millimicron and hectare.
You can view more details on each measurement unit:
square millimicron or hectare
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+18 square millimicron, or 0.0001 hectare.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square millimicrons and hectares.
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You can do the reverse unit conversion from hectare to square millimicron, or enter any two units below:

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## Definition: Hectare

A hectare (symbol ha) is a metric unit of surface area, equal to 100 ares (the name is a contraction of the SI prefix hecto + are). It is a non-SI unit currently accepted (although discouraged) for use with the SI. Its use is widespread in agriculture where it is more practical than either square metres or square kilometres, typical fields being a few hectares in size.

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