What is an acre (US survey)?

An acre (US survey) is an area unit defined as 43,560 square U.S. survey feet, commonly used in U.S. land surveying and legal land descriptions.

How much land is one section?

One section is equal to one square mile, or 640 acres (US survey), and is a standard unit for land parcels in the U.S. Public Land Survey System.

Why is the U.S. survey acre slightly different from the international acre?

Because the U.S. survey acre is based on the U.S. survey foot (exactly 1200/3937 meter), it is slightly larger than the international acre, leading to minor size differences.

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

Easily convert area measurements from acre (US survey) to section using this straightforward online tool designed for land surveying, legal descriptions, and agricultural planning.

Acre (US survey) [ac]

Section

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

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

Acre (US survey) [ac]	Section

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.

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

Explore More Area Units Converter

What Is This Tool?

This unit converter transforms area values from the U.S. survey acre to sections, a larger standard land parcel unit used in the U.S. Public Land Survey System. It facilitates the standardization and interpretation of land measurements for surveying, legal, and agricultural applications.

How to Use This Tool?

Enter the area value measured in acre (US survey) into the input field.
Select 'section' as the target unit for conversion.
Click the convert button to obtain the equivalent area in sections.
Review example calculations to verify your understanding.

Key Features

Converts acre (US survey) units to sections accurately based on established standards.
Supports U.S. land surveying, cadastral mapping, and agricultural planning needs.
Works entirely browser-based with no installation required.
Includes clear examples for easy understanding of the conversion process.

Examples

Convert 10 acres (US survey) to sections: 10 × 0.0015625063 = 0.015625063 sections.
Convert 640 acres (US survey) to sections: 640 × 0.0015625063 = 1 section.

Common Use Cases

Standardizing land parcel sizes in U.S. property deeds and legal boundaries.
Assisting cadastral surveys and township or range mapping projects.
Supporting agricultural land area planning and resource management reports.

Tips & Best Practices

Ensure consistent use of the U.S. survey foot standard when working with these units.
Use this conversion to facilitate easier comparisons of land area at larger scales.
Double-check results with examples to confirm correct input values.

Limitations

The U.S. survey acre is slightly larger than the international acre, which may cause small differences in conversions.
Accuracy depends on adherence to the U.S. survey foot system to avoid discrepancies.
This tool does not convert to units outside of acre (US survey) and section.

Frequently Asked Questions

What is an acre (US survey)?: An acre (US survey) is an area unit defined as 43,560 square U.S. survey feet, commonly used in U.S. land surveying and legal land descriptions.
How much land is one section?: One section is equal to one square mile, or 640 acres (US survey), and is a standard unit for land parcels in the U.S. Public Land Survey System.
Why is the U.S. survey acre slightly different from the international acre?: Because the U.S. survey acre is based on the U.S. survey foot (exactly 1200/3937 meter), it is slightly larger than the international acre, leading to minor size differences.

Key Terminology

Acre (US survey): An area measurement unit equal to 43,560 square U.S. survey feet, used mainly in U.S. land surveying and legal land records.
Section: A unit of land area equal to one square mile or 640 acres (US survey), used in the U.S. Public Land Survey System for legal and cadastral purposes.
U.S. survey foot: A measurement unit exactly defined as 1200/3937 meters, forming the basis for the U.S. survey acre.

Quick Knowledge Check

What is the conversion rate from acre (US survey) to section?

0.0015625063

0.015625063

640

How many acres (US survey) are in one section?

43,560

640

1,000

Which unit is slightly larger, the U.S. survey acre or the international acre?

International acre

U.S. survey acre

Both are the same

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