Hectares to Acres – ha to ac

By Katie Barton

Katie Barton Senior Editor

Katie Barton is a freelance writer with expertise in home improvement. For as long as she can remember, she's had a passion for making homes beautiful. She specializes in cleaning, organizing, and home improvement projects, bringing her knowledge and creativity to every article she writes.

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| Published on Feb 2, 2023

Reviewed by Stefan Gheorghe

Stefan Gheorghe Founder/CEO

Stefan Gheorghe is the founder and CEO of Homedit.com. In 2008, he launched the platform out of his passion for interior design and home decoration.

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Hectares(ha) to Acres(ac)

Hectares to Acres - ha to ac

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Use this simple calculator to convert hectares to acres. Put the number of hectares in the value field, and the calculator will automatically calculate acres. Or, use the hectare-to-acres formula below to make your own calculations.

To convert from hectares to acres, multiply your figure by 2.471.

Hectares to Acres formula:

acres=hectares×2.471

Here’s a table showing common hectares to acres calculations:

How to Convert a Hectare to Other Units

Here’s how to convert a hectare to other popular units of measurement:

• Square Meters: A hectare is equal to 10,000 square meters. To convert hectares to square meters, multiply the value of hectares by 10,000.Formula:
  Square meters = hectares × 10,000
• Square Kilometers: A hectare is equal to 0.01 square kilometers. To convert hectares to square kilometers, divide the value of hectares by 100.Formula:
  Square kilometers = hectares ÷ 100
• Square Feet: There are approximately 107,639 square feet in one hectare. To convert hectares to square feet, multiply the value of hectares by 107,639.Formula:
  Square feet = hectares × 107,639
• Square Miles: One hectare contains approximately 0.00386102 square miles. To convert hectares to square miles, divide the hectare value by 258.999 (or approximately 259).Formula:
  Square miles = hectares ÷ 259

What is a Hectare?

A hectare is a unit of measurement for assessing the size of land. The symbol for hectare is ha, and it is part of the metric system. The hectare is widely used in countries that have adopted the metric system.

The metric system originated around 1795, when the measurement “are” was introduced. An are is equal to one square decameter or 100 square meters. A hectare is the equivalent of 100 ares. Due to its larger size, the hectare became the standard unit for land measurement.

In 1960, during the 11th General Conference on Weights and Measures, the International System of Units (SI) was created to establish consistency in measurements across countries.

During this development, the “are” was omitted from the SI system, but the hectare remained a recognized measurement. Here’s a breakdown of how a hectare compares to other common measurements:

• A hectare is equivalent to 2.471 acres.
• One hectare equals 107,639 square feet.
• A hectare is equal to 10,000 square meters

What is an Acre?

An acre is a unit of land measurement used in the United States, the United Kingdom, the US Virgin Islands, some parts of South Asia, and a few other countries. It is part of the Imperial System and US Customary Units.

Originally, an acre was defined as “one chain by one furlong,” or 66 feet by 660 feet. Here’s how an acre compares to other common measurements:

• One acre is equivalent to 0.4047 hectares.
• One acre equals 43,560 square feet.