What Is This Tool?
This converter changes land area values from the U.S. survey acre unit to the square chain unit, both historically important measurements used mainly in surveying and legal property descriptions within the United States.
How to Use This Tool?
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Enter the land area value in acre (US survey).
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Select acre (US survey) as the input unit and square chain as the output unit.
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Click convert to see the equivalent value in square chain.
Key Features
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Converts acre (US survey) to square chain with precise area relations.
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Supports land measurement and cadastral mapping requirements.
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Browser-based and simple to use without installation.
Examples
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2 acre (US survey) equals 20.0000800002 square chain.
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0.5 acre (US survey) converts to 5.00002000005 square chain.
Common Use Cases
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Describing parcel sizes in U.S. property deeds and legal boundary documents.
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Converting cadastral map data from U.S. survey-foot–based measurements to imperial units.
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Interpreting historical land records and agricultural area statistics using U.S. survey foot systems.
Tips & Best Practices
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Verify the unit definitions and context before using conversion results in legal documents.
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Use this tool for reconciling differences between U.S. survey acre and square chain in land surveying.
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Cross-check historical land records when interpreting area values in imperial units.
Limitations
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Small differences exist between U.S. survey acre and international acre that can affect survey precision.
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Conversion relies on exact measurements based on U.S. survey feet, which differ slightly from modern international standards.
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Users should be aware of legal definitions and context when applying these conversions.
Frequently Asked Questions
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What is an acre (US survey)?
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An acre (US survey) is an area unit defined as 43,560 square U.S. survey feet, primarily used in U.S. land surveying and legal cadastral records.
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How many square chains are in one acre (US survey)?
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One acre (US survey) equals approximately 10.0000400001 square chains.
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Why convert between acre (US survey) and square chain?
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Conversions help interpret historical land records and support legal documentation involving imperial area units in cadastral and surveying contexts.
Key Terminology
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Acre (US survey)
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An area unit equal to 43,560 square U.S. survey feet, used mainly in U.S. land surveying.
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Square chain (ch^2)
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An imperial area unit equal to the area of a square with sides one chain (66 feet), equivalent to 4,356 square feet.
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U.S. Survey Foot
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A foot measurement standard exactly equal to 1200 divided by 3937 metres, used to define the U.S. survey acre.