Calcometry
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Acres to Hectares Converter
Convert acres to hectares (and back) instantly. Useful for land, farms, and real estate abroad.
Acres
ac
Hectares
ha
1 ac = 0.404686 ha
Convert Acres
Quick presets
Hectares
4.0469 ha
10 ac = 4.0469 ha
- 0.25 ac
- 0.101171 ha
- 1 ac
- 0.404686 ha
- 5 ac
- 2.0234 ha
- 10 ac
- 4.0469 ha
- 40 ac
- 16.1874 ha
- 100 ac
- 40.4686 ha
- 1,000 ac
- 404.69 ha
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Acres vs hectares
Acres are common for land area in the US and UK. Hectares are the metric unit used in most other countries for farms, parks, and forestry. One acre equals 0.40468564224 hectares.
Common questions
How big is a 40-acre field in hectares?
40 acres is about 16.19 hectares. Farmers comparing US listings to European parcels should convert area before judging value per unit — hectares look “smaller” numerically but cover the same ground.
Is a hectare roughly two football fields?
A hectare (10,000 m²) is close to 1.76 acres — about one international soccer pitch in area, or roughly two American football fields including end zones, depending on which field standard you use.
Do property tax records use acres or square feet?
US county records often list both lot size in square feet and acreage for larger parcels. 1 acre = 43,560 sq ft exactly. Hectares are rarely used on US deeds but appear in international listings.
How is acre related to a mile?
Historically, one acre was defined as a strip of land one furlong long and one chain wide. Today it is fixed at 4,046.8564224 square meters — independent of how you measure the perimeter.