What Is This Tool?
This converter transforms area measurements from arpent, a traditional unit used historically in France, Québec, and Louisiana, into square kilometers, the standard SI unit for large land areas.
How to Use This Tool?
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Enter the area value in arpent in the input field
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Select arpent as the source unit if required
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Choose square kilometer [km²] as the target unit
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Execute the conversion to get the equivalent area in square kilometers
Key Features
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Converts historical area measurements from arpent to square kilometers
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Uses a fixed conversion factor based on established regional definitions
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Facilitates interpreting old cadastral maps and property records
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Browser-based and easy to use for quick area conversions
Examples
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Convert 5 arpent to square kilometers: 5 × 0.0034188929 = 0.0170944645 km²
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Convert 10 arpent to square kilometers: 10 × 0.0034188929 = 0.034188929 km²
Common Use Cases
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Translating historical land grant sizes in Québec and Louisiana
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Analyzing old survey and cadastral map data for modern use
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Integrating legacy land measurements into geographic information systems
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Supporting urban planning and environmental studies with historical area data
Tips & Best Practices
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Remember that arpent size may vary regionally; verify local definitions if precise accuracy is needed
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Use this conversion tool primarily for historical and regional land measurement records
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Cross-check converted values when applying data in legal or technical contexts
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Leverage the square kilometer unit for standardized, large-area comparisons and reporting
Limitations
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The exact size of arpent historically varies, making the conversion approximate
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Arpent is rarely used outside specialized historical or regional scenarios
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Precise applications may require adjustment according to local arpent definitions
Frequently Asked Questions
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What is an arpent unit?
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Arpent is a historical French unit of area used mainly for land measurement in France, Québec, and Louisiana, with its size varying by region.
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Why convert arpent to square kilometers?
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Converting arpent to square kilometers standardizes old land measurements for modern use, facilitating comparison and GIS integration.
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Is this conversion exact?
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No, the conversion is approximate because the size of an arpent differs regionally and over time.
Key Terminology
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Arpent
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A historical French unit of area used for land measurement, roughly equivalent to 0.34 hectare but varying by region.
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Square Kilometer (km²)
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The SI derived unit of area defined as the area of a square with one-kilometer sides, equal to 1,000,000 square meters.
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Cadastral Records
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Documents and maps that detail property boundaries and land ownership used for land administration.