Convert square millimeter [mm^2] to square hectometer [hm^2] Online | Free area Converter
Square Millimeter [mm²]
A square millimeter (mm²) is a unit of area equal to a square with sides 1 millimeter long. It is used to measure very small surfaces, such as parts of mechanical components or electronic circuits.
1 mm² = 0.000001 m².
Square Hectometer [hm²]
A square hectometer (hm²) is a unit of area equal to a square with sides 1 hectometer (100 meters) long.
1 hm² = 10,000 m² = 1 hectare (ha).
It is used to measure large areas like fields or forests, similar to hectares.