Area Conversions
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Area Conversions
Hectare to Square Milimeter Conversion
Type a value to convert from hectare to square milimeter.
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Hectare
A hectare is a unit of area, equal to 10,000 square metres. Its base unit, the are, was defined by older forms of the metric system, but neither it nor the hectare are part of the modern metric system.
Square Milimeter
The square milimeter is defined as the area of a square whose sides measure exactly one milimeter.