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hectare (ha) → acre (acre)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
ha=acre
0.01=0.024711
0.1=0.247105
1=2.471052
2=4.942103
3=7.413155
5=12.355258
10=24.710516
20=49.421033
50=123.552582
100=247.105163
1000=2,471.0516

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Brief explanation: hectare to acre

Square meter is the base unit for area. Hectare = 10,000 m². Acre ≈ 4047 m². Square foot = 0.093 m². Square km = 1 million m². Area measures two-dimensional space. Hectares are used for land (farms, parks). Acres are common in the US and UK for real estate. Square feet are standard for room sizes. When converting, remember area uses squared units—so 1 m² = 10.76 ft².

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Common conversion examples: hectare to acre

Reference values for quick comparison. Use the converter above for any amount.

  • 1 hectare=2.4711 acre
  • 10 hectare=24.7105 acre
  • 100 hectare=247.1052 acre

About the Units

hectare (ha)

Definition: A hectare (ha) is a unit of area equal to 10,000 square meters or 0.01 square kilometers. It is commonly used for agricultural land and forestry.
History: The hectare was adopted in 1795 as part of the metric system. The name combines the Greek hecto- (hundred) with are (100 m²). It became the standard for agricultural land in metric countries.
Current use: Hectares are used for farmland, vineyards, and forest area. Real estate for agricultural land uses hectares. One hectare is approximately 2.47 acres.

acre (acre)

Definition: An acre is a unit of area used in the imperial and US systems. One acre equals 4,046.86 square meters or about 0.405 hectares. It was traditionally the area a yoke of oxen could plow in a day.
History: The acre has medieval English origins. It was standardized for land measurement and taxation. The international acre was defined in 1959 for consistency.
Current use: Acres are used for land area in the US, UK, and some Commonwealth countries. Real estate, farming, and forestry use acres. Most countries use hectares.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: