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Convert Square Millimeter to Hectare

Square Millimeter (mm²)
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Hectare (ha)

Square Millimeter

The square millimeter (mm²) is a unit of area in the metric system, equal to the area of a square with sides that are each 1 millimeter long. One square millimeter is equivalent to 1/1,000,000th of a square meter or 0.000001 square meters. It is commonly used to measure very small areas, such as the cross-sectional area of wires, the area of small components, or minute details in designs and prints.

Origin:

The square millimeter is derived from the millimeter, which is a unit of length in the metric system. The millimeter itself is one thousandth of a meter and was introduced as part of the metric system in the 18th century. The square millimeter is defined as the square of the millimeter, and it follows the principles of the metric system, where area units are derived from the square of the unit of length. As the metric system became more widely adopted globally, the square millimeter became a standard unit for measuring very small areas, especially in fields such as engineering, electronics, and printing.

Hectare

The hectare (ha) is a unit of area in the metric system, commonly used to measure large plots of land, especially in agriculture, forestry, and land planning. One hectare is equal to 10,000 square meters or 0.01 square kilometers. It is roughly equivalent to 2.471 acres.

Origin:

The hectare was introduced in the 18th century as part of the metric system and is derived from the meter, the base unit of length in the metric system. The word "hectare" comes from the Greek word "hekaton" meaning "hundred," combined with the metric unit "are" (which represents 100 square meters). The hectare was designed to provide a practical unit for measuring larger areas, such as farmland and forests, in a way that fits within the metric system. Today, the hectare is widely used across the world for land measurement, although it is not commonly used in the United States, where acres are preferred instead.

Convert Square Millimeter to other area-converter units

1 Square Millimeter = 0.000001 Square Meter

1 Square Millimeter = 1e-12 Square Kilometer

1 Square Millimeter = 0.01 Square Centimeter

1 Square Millimeter = 1 Square Millimeter

1 Square Millimeter = 1000000000000 Square Nanometer

1 Square Millimeter = 1000000 Square Micrometer

1 Square Millimeter = Hectare

1 Square Millimeter = Acre

1 Square Millimeter = 3.861021585e-13 Square Mile

1 Square Millimeter = 0.000001196 Square Yard

1 Square Millimeter = 0.0000107639 Square Feet

1 Square Millimeter = 0.0015500031 Square Inch