What is a US survey acre?

A US survey acre is an area unit defined as 43,560 square US survey feet, used mainly in US land surveying and legal land records.

Why convert acres to square decimeters?

Converting to square decimeters allows expressing large land areas in precise metric units, suitable for scientific or technical applications.

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

No, the US survey acre is slightly larger due to its definition based on the US survey foot, differing from the international acre.

How to Convert from Acre (US survey) [ac] to Square decimeter [dm^2]

Online Area Units Converter

Learn the method to convert area from acre (US survey) to square decimeter with definitions, examples, and common use cases for accurate area measurement.

Acre (US survey) [ac]

Square decimeter [dm^2]

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

Acre (US survey) [ac] to Square decimeter [dm^2] Conversion Table

Acre (US survey) [ac]	Square decimeter [dm^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 decimeter [dm^2] Conversion Table
Acre (US survey) [ac]	Square decimeter [dm^2]

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What Is This Tool?

This unit converter tool helps you change measurements from acre (US survey), a unit mostly used in U.S. land surveys, to square decimeters, a metric unit for smaller area measurements. It facilitates bridging traditional land measurement units and precise SI units for technical and scientific uses.

How to Use This Tool?

Enter the value in acre (US survey) that you want to convert.
Select acre (US survey) as the input unit and square decimeter as the output unit.
Click the convert button to see the equivalent size in square decimeters.
Use the results for land surveying, laboratory measurements, or technical documents.

Key Features

Converts area from acre (US survey) to square decimeter accurately.
Supports measurements based on U.S. survey foot definitions used in land surveying.
Expresses large land areas in smaller, precise SI units suitable for scientific or industrial purposes.
Browser-based and simple to use without needing special software.

Examples

2 acres (US survey) equals 809374.52197486 square decimeters.
0.5 acres (US survey) equals 202343.630493715 square decimeters.

Common Use Cases

Describing parcel sizes in U.S. property deeds and legal boundary descriptions.
Converting areas in cadastral and land-survey maps based on U.S. survey foot measure.
Measuring surface areas of tiles, labels, or packaging.
Laboratory surface area measurements like petri dish or sample trays.
Specifying coverage rates in technical drawings or material datasheets.

Tips & Best Practices

Verify the units selected before converting to avoid misinterpretation.
Use this conversion to connect traditional land survey units to modern metric units.
Be mindful that converting large areas into small units like square decimeters may yield large numeric results.
Cross-check results when precision is critical due to slight differences between US survey and international acres.

Limitations

The US survey acre differs slightly from the international acre, which can cause small inaccuracies.
Square decimeters are much smaller units, making results large and potentially unwieldy for huge land measurements.
Rounding during conversion can affect precision for very large areas.

Frequently Asked Questions

What is a US survey acre?: A US survey acre is an area unit defined as 43,560 square US survey feet, used mainly in US land surveying and legal land records.
Why convert acres to square decimeters?: Converting to square decimeters allows expressing large land areas in precise metric units, suitable for scientific or technical applications.
Is the acre (US survey) the same as the international acre?: No, the US survey acre is slightly larger due to its definition based on the US survey foot, differing from the international acre.

Key Terminology

Acre (US survey): An area equal to 43,560 square US survey feet, used primarily in US land surveying and legal documents.
Square decimeter (dm²): An SI-derived unit of area equal to the area of a square with 1 decimeter sides, equivalent to 0.01 square meters.
US survey foot: A unit of length defined exactly as 1200/3937 meters, forming the basis for the US survey acre.

Quick Knowledge Check

Which unit is larger, an acre (US survey) or a square decimeter?

Square decimeter

Acre (US survey)

They are the same size

What is 1 acre (US survey) equal to in square decimeters?

404687.26098743

43560

1000000

Why might results be cumbersome when converting large land areas to square decimeters?

Square decimeters are much smaller units

Conversion formulas are inaccurate

The units are the same size

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