Hectare [ha] to Acre [ac] Converter

Quick Reference

1 Hectare (ha) = 2.471051423 Acre (ac)

1 Acre (ac) = 0.4046860339 Hectare (ha)

How to Convert Hectare to Acre

1 ha = 2.4710514233241505 ac
1 ac = 0.4046860338724812 ha

To convert Hectare to Acre, multiply the value by 2.471051423. To convert Acre back to Hectare, divide by 2.471051423.

Example: convert 10 ha to ac:
10 ha = 10 x 2.4710514233241505 = 24.710514233241504 ac

↔ Convert Acre to Hectare

Hectare

Definition: A hectare (ha) is a non-SI metric unit of area equal to 10,000 square meters. It is primarily used for measuring land area.

History/origin: The hectare was adopted as a unit of area following the French Revolution, along with the metric system. It is derived from the word 'hecto,' meaning one hundred, and 'are,' which is a unit of area equal to 100 square meters.

Current use: Hectares are commonly used in agriculture, forestry, land management, and urban planning to measure large areas of land. It's a widely used unit in many countries, particularly for agricultural land.

Acre

Definition: An acre (ac) is a unit of area used in the imperial and US customary systems. It is equal to 43,560 square feet, or approximately 4,047 square meters.

History/origin: The acre has ancient origins, dating back to medieval England. It was originally defined as the area of land that a yoke of oxen could plow in a day.

Current use: Acres are commonly used in agriculture, land management, and real estate to measure larger areas of land. It's a prevalent unit in the United States and some other countries.

Hectare to Acre Conversion Table

Hectare [ha]	Acre [ac]
1 ha	2.4710514233241505 ac
2 ha	4.942102846648301 ac
5 ha	12.355257116620752 ac
10 ha	24.710514233241504 ac
20 ha	49.42102846648301 ac
50 ha	123.55257116620753 ac
100 ha	247.10514233241506 ac
200 ha	494.2102846648301 ac
500 ha	1235.5257116620753 ac
1000 ha	2471.0514233241506 ac

Common pairs of Area

Square Millimeter

Square Millimeter to Centimeter Square Millimeter to Square Meter Square Millimeter to Hectare Square Millimeter to Square Kilometer Square Millimeter to Square Inch

Centimeter

Centimeter to Square Millimeter Centimeter to Square Meter Centimeter to Hectare Centimeter to Square Kilometer Centimeter to Square Inch

Square Meter

Square Meter to Square Millimeter Square Meter to Centimeter Square Meter to Hectare Square Meter to Square Kilometer Square Meter to Square Inch

Hectare

Hectare to Square Millimeter Hectare to Centimeter Hectare to Square Meter Hectare to Square Kilometer Hectare to Square Inch

Square Kilometer

Square Kilometer to Square Millimeter Square Kilometer to Centimeter Square Kilometer to Square Meter Square Kilometer to Hectare Square Kilometer to Square Inch

Square Inch

Square Inch to Square Millimeter Square Inch to Centimeter Square Inch to Square Meter Square Inch to Hectare Square Inch to Square Kilometer

Square Yard

Square Yard to Square Millimeter Square Yard to Centimeter Square Yard to Square Meter Square Yard to Hectare Square Yard to Square Kilometer

Square Foot

Square Foot to Square Millimeter Square Foot to Centimeter Square Foot to Square Meter Square Foot to Hectare Square Foot to Square Kilometer

Acre

Acre to Square Millimeter Acre to Centimeter Acre to Square Meter Acre to Hectare Acre to Square Kilometer

Square Mile

Square Mile to Square Millimeter Square Mile to Centimeter Square Mile to Square Meter Square Mile to Hectare Square Mile to Square Kilometer

Hectare [ha] to Acre [ac] Converter

To convert Hectare to Acre, enter your value in the ha field above and the result in ac will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your ha value by the fixed conversion ratio to get the equivalent in ac.

Our Hectare to Acre converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.

Yes, absolutely. Simply swap the source and destination units in the converter — select ac as your input unit and ha as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between Hectare and Acre comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.

Yes, the Hectare to Acre converter is completely free. No account or registration is required, and there are no usage limits. It works on any device — smartphones, tablets, and desktop computers — directly in your browser.

Hectare and Acre are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.

Hectare [ha] to Acre [ac] Converter

Quick Reference

1 Hectare (ha) = 2.471051423 Acre (ac)

1 Acre (ac) = 0.4046860339 Hectare (ha)

How to Convert Hectare to Acre

1 ha = 2.4710514233241505 ac
1 ac = 0.4046860338724812 ha

To convert Hectare to Acre, multiply the value by 2.471051423. To convert Acre back to Hectare, divide by 2.471051423.

Example: convert 10 ha to ac:
10 ha = 10 x 2.4710514233241505 = 24.710514233241504 ac

↔ Convert Acre to Hectare

Hectare

Definition: A hectare (ha) is a non-SI metric unit of area equal to 10,000 square meters. It is primarily used for measuring land area.

Acre

Definition: An acre (ac) is a unit of area used in the imperial and US customary systems. It is equal to 43,560 square feet, or approximately 4,047 square meters.

History/origin: The acre has ancient origins, dating back to medieval England. It was originally defined as the area of land that a yoke of oxen could plow in a day.

Current use: Acres are commonly used in agriculture, land management, and real estate to measure larger areas of land. It's a prevalent unit in the United States and some other countries.

Hectare to Acre Conversion Table

Hectare [ha]	Acre [ac]
1 ha	2.4710514233241505 ac
2 ha	4.942102846648301 ac
5 ha	12.355257116620752 ac
10 ha	24.710514233241504 ac
20 ha	49.42102846648301 ac
50 ha	123.55257116620753 ac
100 ha	247.10514233241506 ac
200 ha	494.2102846648301 ac
500 ha	1235.5257116620753 ac
1000 ha	2471.0514233241506 ac