Convert square mile (US survey) to acre (US survey)
Please provide values below to convert square mile (US survey) [mi^2 (US)] to acre (US survey) [ac (US)], or Convert acre (US survey) to square mile (US survey).
How to Convert Square Mile (Us Survey) to Acre (Us Survey)
1 mi^2 (US) = 639.999999995849 ac (US)
Example: convert 15 mi^2 (US) to ac (US):
15 mi^2 (US) = 15 × 639.999999995849 ac (US) = 9599.99999993773 ac (US)
Square Mile (Us Survey) to Acre (Us Survey) Conversion Table
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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.
Acre (Us Survey)
An acre (US survey) is a unit of area used primarily in land measurement, equal to 43,560 square feet or approximately 4,046.86 square meters.
History/Origin
The acre originated in medieval England as a measure of land area that could be plowed in one day with a yoke of oxen. It was standardized in the United States based on the survey system, maintaining its traditional size for land measurement purposes.
Current Use
The acre (US survey) is still used in the United States for real estate, agriculture, and land planning, especially in rural and agricultural contexts, although the metric system is increasingly adopted globally.