Convert are to square mile (US survey)
Please provide values below to convert are [a] to square mile (US survey) [mi^2 (US)], or Convert square mile (US survey) to are.
How to Convert Are to Square Mile (Us Survey)
1 a = 3.86100614138266e-05 mi^2 (US)
Example: convert 15 a to mi^2 (US):
15 a = 15 × 3.86100614138266e-05 mi^2 (US) = 0.000579150921207399 mi^2 (US)
Are to Square Mile (Us Survey) Conversion Table
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Are
The are is a metric unit of area equal to 100 square meters.
History/Origin
The are was introduced in France in the 19th century as a convenient unit for measuring land area, particularly in agriculture and real estate.
Current Use
The are is still used in some countries for land measurement, especially in real estate and agriculture, but has largely been replaced by the hectare in most contexts.
Square Mile (Us Survey)
A square mile (US survey) is a unit of area equal to the area of a square with sides of one mile, specifically used in the United States survey system.
History/Origin
The square mile has been used historically in land measurement and mapping in the United States, originating from the British imperial system. It is commonly employed in surveying and land division, especially in rural and agricultural contexts.
Current Use
Today, the square mile (US survey) is primarily used in land surveying, real estate, and geographic data within the United States, particularly for measuring large land areas such as counties, states, and national parks.