What Is This Tool?
This converter changes area values from square mile (US survey), a unit used chiefly in United States land surveys, into square mile [mi^2], the standard imperial unit used internationally for larger land area measurements.
How to Use This Tool?
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Enter the value in square mile (US survey) you wish to convert
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Select square mile (US survey) as the source unit
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Choose square mile [mi^2] as the target unit
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Click convert to see the result quickly and accurately
Key Features
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Converts square mile (US survey) to square mile [mi^2]
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Uses an exact, standardized conversion rate
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Supports applications in land surveying and GIS
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Helps translate legacy US survey data into international units
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Browser-based and user-friendly interface
Examples
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5 square miles (US survey) converts to 5.00002 square miles [mi^2]
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10 square miles (US survey) converts to 10.00004 square miles [mi^2]
Common Use Cases
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Describing land sections and townships in the U.S. Public Land Survey System
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Recording and converting legal property boundaries surveyed with US survey units
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Translating historic cadastral maps for modern GIS applications
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Reporting city, county, or state land area using international standards
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Analyzing large agricultural or environmental areas with consistent measurement units
Tips & Best Practices
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Verify whether you are working with US survey or international miles before converting
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Use this converter to maintain consistency when combining legacy and modern maps
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Be cautious of small discrepancies in high-precision legal surveys
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Double-check conversions when data will influence official land records
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Use the tool to improve interoperability between older survey datasets and current GIS systems
Limitations
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The minor difference between US survey mile and international mile might affect high-precision areas
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Slight discrepancies may occur when integrating legacy land data with modern geospatial datasets
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Not intended for complex land surveying calculations requiring ultra-high accuracy
Frequently Asked Questions
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What is a square mile (US survey)?
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It is an area unit defined by a square with sides of one US survey mile, mainly used in historic and legal land surveying in the United States.
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How does square mile [mi^2] differ from square mile (US survey)?
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Square mile [mi^2] is based on the international mile, slightly different in length from the US survey mile, commonly used in broader land area reporting.
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Why should I convert from square mile (US survey) to square mile [mi^2]?
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Converting helps translate legacy US survey measurements into the international units used for modern mapping, analysis, and reporting.
Key Terminology
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Square mile (US survey)
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An area unit defined by a square with sides of one US survey mile, used especially in U.S. land surveying and cadastral contexts.
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Square mile [mi^2]
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An imperial unit of area equal to a square with sides of one international mile, commonly used for large-scale land measurements.
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US survey foot
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A foot unit standardized as 1200/3937 metres, foundational in defining the US survey mile.