Online Area Units Converter
How to Convert from Are [a] to Acre (US survey) [ac]

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

Convert area measurements from the metric are to the U.S. survey acre accurately and easily with this helpful online converter tool.

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

Are [a] to Acre (US survey) [ac] Conversion Table

Are [a] Acre (US survey) [ac]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
Are [a] to Acre (US survey) [ac] Conversion Table
Are [a] Acre (US survey) [ac]

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What Is This Tool?

This converter facilitates the transformation of area values from are (a metric unit equal to 100 square meters) to the U.S. survey acre, a unit mainly used in U.S. land surveying and legal property descriptions.

How to Use This Tool?

  • Enter the area value measured in are (a) into the input field
  • Select the target unit as acre (U.S. survey) [ac]
  • Initiate the conversion to receive the equivalent area value in acres
  • Use the converted results to assist with land planning, surveying, or legal documentation

Key Features

  • Enables conversion from are (a) to acre (U.S. survey) with precise conversion rates
  • Supports land measurement units commonly used in agriculture, real estate, and cadastral mapping
  • Browser-based tool requiring no installation for instant use
  • Provides clear examples to guide users through the conversion process

Examples

  • 10 a converts to 0.247104393 ac
  • 50 a converts to 1.235521965 ac

Common Use Cases

  • Measuring small plots, gardens, or allotments where are is more suitable than hectares or square meters
  • Describing parcel sizes in U.S. property deeds and land boundary documents
  • Translating land area data between metric and U.S. customary units for cadastral mapping and agricultural planning
  • Interpreting historical land records that use U.S. survey foot–based measurements

Tips & Best Practices

  • Ensure consistent use of units throughout legal or technical measurements to avoid discrepancies
  • Verify which acre definition applies in your context—U.S. survey acre or international acre—as they differ slightly
  • Use this tool to simplify conversions when working across metric and U.S. customary systems
  • Consult official cadastral or surveying documentation for precise area definitions in legal contexts

Limitations

  • The U.S. survey acre is marginally larger than the international acre, which may cause slight differences
  • Conversions between these units may introduce minor inaccuracies in highly precise applications
  • Legal or technical contexts require careful unit consistency to prevent measurement errors

Frequently Asked Questions

What is the are unit used for?
Are is a metric area unit equal to 100 square meters, often used for small land plots like gardens, allotments, and agricultural fields.

Why use the U.S. survey acre instead of the international acre?
The U.S. survey acre is defined using the U.S. survey foot and is primarily used in U.S. land surveying, legal property descriptions, and cadastral records.

How can I convert are to U.S. survey acres?
Use the conversion factor 1 are equals approximately 0.0247104393 U.S. survey acres, or use this online converter for convenience.

Key Terminology

Are (a)
A metric unit of area equal to 100 square meters, often used for measuring small land plots and related to the hectare.
Acre (US survey) [ac]
A unit of area used in the U.S., defined as 43,560 square U.S. survey feet, slightly larger than the international acre, commonly used in land surveying and legal documentation.
U.S. Survey Foot
A unit of length used in U.S. surveying defined as exactly 1200/3937 meters, forming the basis for the U.S. survey acre.

Quick Knowledge Check

What is one are equal to?
Which unit is primarily used in U.S. land surveying?
What should be considered when converting between are and acre (US survey)?