Convert square rod (US survey) to circular mil
Please provide values below to convert square rod (US survey) [sq rd (US)] to circular mil [circ mil], or Convert circular mil to square rod (US survey).
How to Convert Square Rod (Us Survey) to Circular Mil
1 sq rd (US) = 49916281677.7765 circ mil
Example: convert 15 sq rd (US) to circ mil:
15 sq rd (US) = 15 × 49916281677.7765 circ mil = 748744225166.647 circ mil
Square Rod (Us Survey) to Circular Mil 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.
Circular Mil
A circular mil is a unit of area used to measure the cross-sectional size of wires, representing the area of a circle with a diameter of one mil (one thousandth of an inch).
History/Origin
The circular mil originated in the electrical industry to specify wire sizes before the adoption of metric units. It has been a standard measurement in North America for wire gauge sizes for many decades.
Current Use
Circular mils are still used today in the electrical industry to specify wire cross-sectional areas, especially in North America, although metric units are increasingly common.