What is a circular mil?

A circular mil is a unit of area equal to a circle with a diameter of one mil (0.001 inch), mainly used for electrical conductor cross-sectional area measurements.

What is a square mile (US survey)?

A square mile (US survey) is an area of a square with sides one US survey mile long, used in US land surveying and cadastral records.

Why convert circular mil to square mile (US survey)?

Users convert these units to link electrical conductor area measurements with large-scale land area units for interdisciplinary documentation or data integration.

Convert Circular Mil to Square Mile (US Survey) Online

Easily convert area values from circular mil units to square miles (US survey) with this online unit converter tool. Ideal for electrical and land surveying applications.

Circular mil

Square mile (US survey)

Please check your input. It must be a valid numeric value.

Circular mil to Square mile (US survey) Conversion Table

Circular mil	Square mile (US survey)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Circular mil to Square mile (US survey) Conversion Table
Circular mil	Square mile (US survey)

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What Is This Tool?

This converter transforms area measurements from circular mils, a unit mainly used to specify electrical conductor cross-sectional areas, into square miles (US survey), a land surveying unit for measuring large areas. It is designed for users needing to bridge electrical engineering dimensions with land surveying measurements.

How to Use This Tool?

Enter the area value in circular mils you want to convert.
Select circular mil as the from-unit and square mile (US survey) as the to-unit.
Click the convert button to obtain the equivalent area in square miles (US survey).

Key Features

Converts circular mils to square miles (US survey) accurately based on established conversion rates.
Supports unit definitions widely used in electrical engineering and U.S. land surveying.
Browser-based, easy-to-use interface requiring no installation.
Provides example conversions for quick reference.

Examples

Convert 1,000,000 circular mil to square mile (US survey): results in about 1.9564006886652e-10 square mile.
Convert 500,000 circular mil to square mile (US survey): results in approximately 9.782003443326e-11 square mile.

Common Use Cases

Sizing and specifying electrical wire cross-sectional areas in ampacity tables.
Converting American Wire Gauge (AWG) sizes to area for engineering calculations.
Documenting power distribution conductor sizes in procurement and engineering.
Describing land sections and townships in the U.S. Public Land Survey System.
Recording property boundaries on historic cadastral maps surveyed with US survey units.
Converting legacy GIS and land-record data using US survey measurements.

Tips & Best Practices

Ensure to only convert circular mil values relevant to electrical conductor cross sections.
Use square miles (US survey) primarily for large-scale land area measurements in US surveying contexts.
Be mindful of the very small numeric values resulting from conversions due to unit size differences.
Refer to official engineering and surveying documentation for precise application contexts.

Limitations

Conversion involves extremely small numbers due to the large difference in unit scales.
Circular mil is unsuitable for measuring large land areas and is restricted to electrical conductor cross-sectional area use.
Square mile (US survey) is specifically used for land measurement and not for small-scale electrical measurements.

Frequently Asked Questions

What is a circular mil?: A circular mil is a unit of area equal to a circle with a diameter of one mil (0.001 inch), mainly used for electrical conductor cross-sectional area measurements.
What is a square mile (US survey)?: A square mile (US survey) is an area of a square with sides one US survey mile long, used in US land surveying and cadastral records.
Why convert circular mil to square mile (US survey)?: Users convert these units to link electrical conductor area measurements with large-scale land area units for interdisciplinary documentation or data integration.

Key Terminology

Circular mil: A unit of area equal to the cross-sectional area of a circle with a diameter of one mil (0.001 inch), used primarily for electrical conductors.
Square mile (US survey): An area measurement equal to a square with sides one US survey mile long, used extensively in US land surveying and cadastral records.
US survey mile: A unit of length defined as 5,280 US survey feet, used in land surveying in the United States.
American Wire Gauge (AWG): A standardized wire gauge system used in North America to denote the diameter of round, solid, nonferrous, electrically conducting wire.

Quick Knowledge Check

What does one circular mil represent?

Area of a square with one millimeter sides

Area of a circle with diameter of one mil (0.001 inch)

Area of a square mile in survey units

One square mile (US survey) is based on which measurement?

International foot

US survey mile

Metric kilometer

Which field commonly uses circular mil as an area unit?

Land surveying and cadastral mapping

Electrical engineering for conductor sizing

Agricultural land measurement

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