An arpent is a historical French unit of area commonly about 0.34 hectare, used in land measurement primarily in France, Québec, and Louisiana.

How is a square perch defined?

A square perch is a historical unit of area equal to a square with sides one perch long, traditionally used in British and American land measurement.

Why would I convert arpent to square perch?

Converting between these units helps interpret and reconcile land measurements from historical records across French and British/American colonial contexts.

How to Convert from Arpent to Square perch?

Easily convert area measurements from arpent to square perch using this specialized online unit converter designed for historical land measurement units.

Arpent

Square perch

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

Arpent to Square perch Conversion Table

Arpent	Square perch

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 Square perch Conversion Table
Arpent	Square perch

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What Is This Tool?

This converter tool enables users to convert area values from arpent, a historical French unit of area, into square perch, a traditional British/American land measurement unit. It is particularly useful for understanding and reconciling land sizes in old cadastral maps, property deeds, and colonial land surveys.

How to Use This Tool?

Enter the area value in arpent into the input field.
Select arpent as the source unit and square perch as the target unit.
Click the convert button to get the equivalent area in square perch.

Key Features

Converts arpent to square perch based on recognized historical conversion rates.
Supports research involving colonial land records from France, Québec, Louisiana, and former British territories.
Browser-based and easy to use for archival, surveying, or legal applications.

Examples

Convert 2 arpents to square perch: 2 × 135.1722944157 = 270.3445888314 square perch.
Convert 0.5 arpent to square perch: 0.5 × 135.1722944157 = 67.58614720785 square perch.

Common Use Cases

Interpreting parcel sizes described in historical French colonial land grants.
Converting measurements in older cadastral maps and property deeds for modern analysis.
Supporting genealogical or archival research with legacy area units.
Assisting surveying and legal work involving historical land records.

Tips & Best Practices

Confirm the regional definition of an arpent when possible due to its size variation.
Use this converter as a reference for historical measurement reconciliation, not modern land planning.
Cross-check conversions with historical documents for context accuracy.
Be aware of rounding effects from legacy measurement records.

Limitations

Arpent size varies by region, so conversions may only approximate actual areas.
Square perch is an obsolete unit rarely applied in current land measurement.
Historical records may have rounding or differing perch length definitions affecting precision.

Frequently Asked Questions

What is an arpent?: An arpent is a historical French unit of area commonly about 0.34 hectare, used in land measurement primarily in France, Québec, and Louisiana.
How is a square perch defined?: A square perch is a historical unit of area equal to a square with sides one perch long, traditionally used in British and American land measurement.
Why would I convert arpent to square perch?: Converting between these units helps interpret and reconcile land measurements from historical records across French and British/American colonial contexts.

Key Terminology

Arpent: A historical French unit of land area commonly about 0.34 hectare, used in colonial land records and cadastral maps.
Square perch: A traditional British and American unit of area equal to a square with one perch sides, approximately 272.25 square feet.
Perch: A linear measurement equal to 16.5 feet, used as the side length when defining a square perch area.

Quick Knowledge Check

The arpent is primarily a unit of what kind of measurement?

Length

Area

Volume

One square perch is equal to the area of a square with sides of what length?

16.5 feet

10 feet

20 feet

Which regions commonly used the arpent unit?

France, Québec, Louisiana

Australia and New Zealand

Germany and Austria

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