What Is This Tool?
This tool converts area values from square dekameter, a metric unit used in surveying and engineering, to arpent, a historical French land measurement unit commonly found in cadastral records and colonial land grants. It helps connect modern metric measurements with legacy land units.
How to Use This Tool?
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Enter the area value in square dekameter (dam²).
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Select square dekameter as the input unit.
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Choose arpent as the output unit.
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Click convert to see the equivalent area in arpent.
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Use the results for land surveying, historical research, or cadastral mapping.
Key Features
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Converts area from square dekameter (dam²) to arpent accurately using established conversion rates.
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Supports land measurement conversions for historical and modern surveying contexts.
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Ideal for interpreting cadastral maps, colonial land grants, and property documentation.
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Easy to use with a straightforward conversion formula and examples provided.
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Browser-based tool requiring no installation and accessible anytime.
Examples
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Convert 10 dam²: 10 × 0.0292492343 = 0.292492343 arpent.
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Convert 50 dam²: 50 × 0.0292492343 = 1.462461715 arpent.
Common Use Cases
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Translating modern metric area measurements into historical French land units.
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Interpreting cadastral maps and property deeds from Québec and Louisiana.
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Converting old land-measurement records for use in contemporary surveying or GIS applications.
Tips & Best Practices
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Verify the historical region to understand arpent size variations before conversion.
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Use conversions primarily for historical or regional land survey contexts.
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Consult original land documents when precision is critical due to variability in arpent definitions.
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Apply the tool for general understanding rather than exact legal or engineering measurements.
Limitations
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Arpent size varies regionally and historically, affecting exact equivalence.
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Arpent is not an SI unit and is less precise than modern metric units.
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Conversions are mainly relevant for specific historical or regional land measurement needs, not general modern surveying.
Frequently Asked Questions
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What is a square dekameter?
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A square dekameter (dam²) is an SI-derived unit of area equal to a square with sides of 1 dekameter (10 meters), which equals 100 square meters.
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Where is the arpent unit commonly used?
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The arpent is a historical French land area unit found in cadastral records and colonial land grants in regions like France, Québec, and Louisiana.
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Why might arpent measurements vary?
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Because the arpent's size differed regionally and historically, its exact measurement can change slightly depending on the location.
Key Terminology
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Square dekameter (dam²)
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An area unit representing a square 10 meters on each side, equal to 100 square meters.
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Arpent
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A historical French land area unit varying by region, commonly around 0.34 hectare, used in cadastral and colonial land records.
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Cadastral Mapping
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The practice of creating detailed maps showing property boundaries and land parcels, often using historic units like arpents.