Convert square foot (US survey) to acre (US survey)
Please provide values below to convert square foot (US survey) [ft^2 (US)] to acre (US survey) [ac (US)], or Convert acre (US survey) to square foot (US survey).
How to Convert Square Foot (Us Survey) to Acre (Us Survey)
1 ft^2 (US) = 2.29568411354032e-05 ac (US)
Example: convert 15 ft^2 (US) to ac (US):
15 ft^2 (US) = 15 × 2.29568411354032e-05 ac (US) = 0.000344352617031048 ac (US)
Square Foot (Us Survey) to Acre (Us Survey) Conversion Table
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Square Foot (Us Survey)
A square foot (US survey) is a unit of area equal to the area of a square with sides measuring one foot, primarily used in land measurement and real estate in the United States.
History/Origin
The square foot originated from the foot as a unit of length, which has been used since ancient times. Its application as an area measurement became standardized in the United States for land and property measurements in the 19th and 20th centuries.
Current Use
Today, the square foot (US survey) is widely used in real estate, construction, and land surveying within the United States to measure property sizes, building areas, and land plots.
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.