What is an acre (US survey)?

It is an area unit equal to 43,560 square U.S. survey feet, mainly used in U.S. land surveying and legal property descriptions.

Why convert acres to square feet?

To express large land areas in smaller, more manageable units useful for construction, real estate, and detailed architectural planning.

Is the acre (US survey) the same as the international acre?

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

Convert Acre (US survey) [ac] to Square Foot [ft²] Online

Use our easy online converter to transform area measurements from acre (US survey) to square foot. Perfect for real estate, land surveying, construction, and architecture needs.

Acre (US survey) [ac]

Square foot [ft^2]

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

Acre (US survey) [ac] to Square foot [ft^2] Conversion Table

Acre (US survey) [ac]	Square foot [ft^2]

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 Square foot [ft^2] Conversion Table
Acre (US survey) [ac]	Square foot [ft^2]

Explore More Area Units Converter

What Is This Tool?

This unit converter allows you to convert area measurements from the U.S. survey acre, a land measurement unit used mainly in the United States, into square feet. It is designed to facilitate accurate and straightforward transformations for legal, construction, and property-related purposes.

How to Use This Tool?

Enter the area value in acre (US survey) into the input field.
Select acre (US survey) as the from-unit and square foot as the to-unit.
Click the convert button to see the equivalent area in square feet.
Use the result for construction planning, real estate listings, or land surveying records.

Key Features

Converts acre (US survey) values directly into square feet.
Uses the exact relationship based on the U.S. survey foot measurement.
Helpful for real estate, surveying, construction, and land management applications.
Browser-based tool requiring no installation and accessible anytime.
Supports large number conversions suitable for detailed architectural or cadastral work.

Examples

2 acres (US survey) converts to 87,120.348 square feet.
0.5 acre (US survey) converts to 21,780.087 square feet.

Common Use Cases

Describing land parcel sizes in U.S. property deeds and legal boundary descriptions.
Converting survey data areas in mapping applications using the U.S. survey-foot system.
Estimating material quantities for construction projects based on floor or land area.
Interpreting agricultural land area statistics with historic land record references.

Tips & Best Practices

Verify that measurements use the U.S. survey foot to ensure consistency.
Be mindful of minor size differences between the U.S. survey acre and the international acre.
Use precise input values to avoid rounding issues in detailed legal or cadastral documentation.
Double-check large conversion results for accuracy when planning architectural or construction tasks.

Limitations

The U.S. survey acre is slightly larger than the international acre, which can lead to small discrepancies if mixed.
Conversions require careful handling of large numbers due to the smaller size of the square foot unit.
Rounding errors can occur if precision is not maintained, especially in legal or cadastral contexts.

Frequently Asked Questions

What is an acre (US survey)?: It is an area unit equal to 43,560 square U.S. survey feet, mainly used in U.S. land surveying and legal property descriptions.
Why convert acres to square feet?: To express large land areas in smaller, more manageable units useful for construction, real estate, and detailed architectural planning.
Is the acre (US survey) the same as the international acre?: No, the U.S. survey acre is slightly larger than the international acre due to the definition based on the U.S. survey foot.

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.
Square foot (ft²): An area unit representing a square with sides one foot long, commonly used in Imperial and U.S. customary systems.
U.S. survey foot: A length unit exactly defined as 1200/3937 meters used as the basis for the U.S. survey acre.

Quick Knowledge Check

What unit is the acre (US survey) primarily based on?

International foot

U.S. survey foot

Metric meter

One acre (US survey) equals how many square feet?

43,560.174

4,046.8726

0.09290304

Why might converting large acre values cause issues?

Because of large resulting square foot numbers

Because acres vary widely worldwide

Because square feet are unreliable