What is a circular inch used for?

A circular inch measures the area of a circle with a one-inch diameter, commonly used for specifying the cross-sectional area of round objects like electrical conductors.

Where is the arpent historically used?

The arpent is a historical French unit of area used primarily in France, Québec, and Louisiana for land measurement and found in old land grants and cadastral maps.

Can this conversion be used for modern land surveys?

Due to regional and historical variations in the arpent size, this conversion is not recommended for accurate modern legal land measurements.

How to Convert from Circular Inch to Arpent

Learn how to convert area measurements from circular inch, a unit used in engineering for round cross-sections, to arpent, a historical French land area unit. This guide covers definitions, use cases, and examples for this unique unit conversion.

Circular inch

Arpent

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

Circular inch to Arpent Conversion Table

Circular inch	Arpent

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.

Circular inch to Arpent Conversion Table
Circular inch	Arpent

Explore More Area Units Converter

What Is This Tool?

This tool allows you to convert measurements from circular inches, used for the area of round cross-sections, into arpents, an old French unit for land area. It helps bridge engineering specifications with historical land measurement units.

How to Use This Tool?

Enter the value in circular inches representing the area of a circular cross-section
Select circular inch as the input unit and arpent as the output unit
Click convert to get the equivalent area expressed in arpents
Use the result for engineering analysis or historical land record interpretation

Key Features

Converts small-scale circular cross-sectional area units into large historical land area units
Supports engineering and historical surveying applications
Includes precise conversion based on official unit definitions
Browser-based and easy to use for quick calculations

Examples

10 circular inches is equal to 1.482080575235e-6 arpents
1,000 circular inches corresponds to approximately 0.0001482080575235 arpents

Common Use Cases

Specifying cross-sectional area for large round electrical conductors or cables
Computing areas of round rods, shafts, or piping with inch diameters
Translating colonial French land grants and cadastral maps into modern units
Analyzing historical land records from Québec, Louisiana, and France in GIS

Tips & Best Practices

Ensure accurate input values for circular inches to avoid conversion errors
Keep in mind regional and historical variations of the arpent size when interpreting results
Use scientific notation for very small results due to the large difference in unit scales
Avoid applying this conversion for precise modern legal land measurements

Limitations

The arpent's size differs historically and regionally, affecting conversion precision
Circular inch is a very small area compared to arpent, resulting in very small conversion values
High precision or scientific notation is often needed to express results clearly
Not recommended for current legal land measurements due to variability in arpent definitions

Frequently Asked Questions

What is a circular inch used for?: A circular inch measures the area of a circle with a one-inch diameter, commonly used for specifying the cross-sectional area of round objects like electrical conductors.
Where is the arpent historically used?: The arpent is a historical French unit of area used primarily in France, Québec, and Louisiana for land measurement and found in old land grants and cadastral maps.
Can this conversion be used for modern land surveys?: Due to regional and historical variations in the arpent size, this conversion is not recommended for accurate modern legal land measurements.

Key Terminology

Circular Inch: An area unit equal to the area of a circle with a one-inch diameter, used mainly to specify cross-sectional areas of round objects.
Arpent: A historical French land measurement unit roughly equal to 0.34 hectares, used in old land records and maps.
Cadastral Map: A map showing boundaries and ownership of land parcels, often used in land surveying and property records.

Quick Knowledge Check

What does one circular inch represent?

The area of a square inch

The area of a circle with a one-inch diameter

The area of a circle with a one-centimeter diameter

In which regions was the arpent historically used?

France, Québec, and Louisiana

United States and Canada only

Australia and New Zealand

Why might conversion results be very small?

Because circular inch is much larger than arpent

Because circular inch is much smaller than arpent

Because both units measure volume

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