Convert square rod (US survey) to square kilometer
Please provide values below to convert square rod (US survey) [sq rd (US)] to square kilometer [km^2], or Convert square kilometer to square rod (US survey).
How to Convert Square Rod (Us Survey) to Square Kilometer
1 sq rd (US) = 2.529295325e-05 km^2
Example: convert 15 sq rd (US) to km^2:
15 sq rd (US) = 15 × 2.529295325e-05 km^2 = 0.00037939429875 km^2
Square Rod (Us Survey) to Square Kilometer Conversion Table
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Square Rod (Us Survey)
A square rod (US survey) is a unit of area equal to the area of a square with sides measuring one rod (16.5 feet) each, used primarily in land measurement.
History/Origin
The square rod originated from the traditional land measurement system in the United States, particularly in surveying and real estate, where the rod was a common unit of length. It has been used historically for measuring plots of land, especially in rural and agricultural contexts.
Current Use
Today, the square rod (US survey) is largely obsolete and replaced by more modern units like acres. However, it may still be encountered in historical land records and surveying documents.
Square Kilometer
A square kilometer is a unit of area equal to the area of a square with sides measuring one kilometer each.
History/Origin
The square kilometer has been used as a standard unit of area measurement in the metric system since its adoption, primarily for measuring large land areas such as countries and regions.
Current Use
It is commonly used in geography, urban planning, and environmental studies to quantify land and area sizes, especially in contexts requiring large-scale measurements.