What is an arpent used for?

An arpent is a historical French unit of land area commonly used in France, Québec, and Louisiana, especially in colonial land grants and cadastral records.

Why convert arpent to acre (US survey)?

Converting arpent to U.S. survey acres helps interpret and integrate old French land measurements into modern American surveying and legal land descriptions.

Is the acre used in this tool the same as the international acre?

No, the acre here refers to the U.S. survey acre, which is slightly larger than the international acre due to its definition based on the U.S. survey foot.

How to Convert from Arpent to Acre (US survey) [ac]

Easily convert historical French land area units called arpent into the U.S. survey acre, used primarily in American land surveying. This tool helps interpret old cadastral maps and legal property descriptions by translating arpents into modern acreage.

Arpent

Acre (US survey) [ac]

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

Arpent to Acre (US survey) [ac] Conversion Table

Arpent	Acre (US survey) [ac]

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.

Arpent to Acre (US survey) [ac] Conversion Table
Arpent	Acre (US survey) [ac]

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What Is This Tool?

This converter transforms the historical French unit of area, the arpent, into the U.S. survey acre, a standard unit used in American land measurements. It is useful for integrating old land records from regions with French colonial history into current surveying and legal frameworks.

How to Use This Tool?

Enter the area value measured in arpents
Select arpent as the original unit and acre (US survey) as the target unit
Initiate the conversion process
View the result expressed in U.S. survey acres for practical use

Key Features

Converts arpent, a historical French land measurement, to U.S. survey acres
Useful for land surveying, cadastral mapping, and historical research
Supports accurate interpretation of legal property deeds and land grants
Browser-based and easy to use without installation
Helps bridge old French colonial land measurements with modern U.S. standards

Examples

Convert 5 arpents to acres: 5 arpents equals approximately 4.22 acres (US survey)
Convert 10 arpents to acres: 10 arpents equals approximately 8.45 acres (US survey)

Common Use Cases

Describing parcel sizes in colonial land grants in Québec and Louisiana
Interpreting cadastral records and property deeds with historical units
Converting old land-measurement records for modern surveying or GIS
Recording areas in property deeds and legal boundary descriptions in the U.S.
Understanding agricultural land statistics based on U.S. survey foot systems

Tips & Best Practices

Use this converter to translate historical land units into modern ones for better comparison
Be mindful that arpent sizes varied regionally; apply results accordingly
Remember that the U.S. survey acre differs slightly from the international acre
Cross-check conversions if precise legal boundaries are critical
Use the tool as a supplement alongside historical and cadastral research

Limitations

The arpent's size varied historically and regionally, so fixed rates might not be exact
The U.S. survey acre slightly differs from the international acre, affecting direct comparisons
This tool does not account for local variations in arpent definitions
It provides an approximate conversion suitable for research and general use

Frequently Asked Questions

What is an arpent used for?: An arpent is a historical French unit of land area commonly used in France, Québec, and Louisiana, especially in colonial land grants and cadastral records.
Why convert arpent to acre (US survey)?: Converting arpent to U.S. survey acres helps interpret and integrate old French land measurements into modern American surveying and legal land descriptions.
Is the acre used in this tool the same as the international acre?: No, the acre here refers to the U.S. survey acre, which is slightly larger than the international acre due to its definition based on the U.S. survey foot.

Key Terminology

Arpent: A historical French unit of land area used primarily in colonial land grants, varying regionally but commonly about 0.34 hectare.
U.S. survey acre: An area unit defined by 43,560 U.S. survey square feet, slightly larger than the international acre, used in U.S. land surveying.
Cadastral records: Official documents detailing land ownership, boundaries, and measurements used in surveying and property descriptions.

Quick Knowledge Check

What historical regions commonly used the arpent for land measurement?

Québec and Louisiana

Texas and Florida

California and Nevada

What does the U.S. survey acre equal in square feet?

43,560 square U.S. survey feet

40,000 square feet

50,000 square feet

What is one limitation of converting arpent to acre (US survey)?

Arpent size varied by region

Acre size varies daily

Conversion is universally exact

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