Convert hectares to acres easily.
1 ha x 2.47105 = 2.47105 ac
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Ever tried comparing a European vineyard size to an American ranch? That's where hectare to acre conversion becomes your best friend. Whether you're analyzing agricultural reports, buying land overseas, or just satisfying geography curiosity, understanding these units opens up a world of clarity. Let's break it down together - no advanced math degree required.
Unit definitions
What is a hectare (ha)?
- Description: The hectare is metric system's star player for large areas
- Symbol: ha
- Common uses: Land measurement, agriculture, forestry
- Definition: 10,000 square meters (100m × 100m)
What is an acre (ac)?
- Description: An imperial old-timer with medieval roots
- Symbol: ac
- Common uses: Real estate, farming in imperial-system countries
- Definition: 43,560 square feet (about 208.71ft × 208.71ft)
Conversion formula
The magic number? 2.47105. Multiply hectares by this value to get acres:
Acres = Hectares × 2.47105
To go backward:
Hectares = Acres ÷ 2.47105
Example calculations
- Converting 5 hectares to acres:
5 ha × 2.47105 = 12.35525 ac
(Rounded to 12.36 acres for practical use) - Converting 20 acres to hectares:
20 ac ÷ 2.47105 ≈ 8.09371 ha
(About 8.09 hectares)
Conversion tables
Hectares to acres
| Hectares | Acres |
|---|---|
| 1 | 2.47105 |
| 2 | 4.94210 |
| 3 | 7.41315 |
| 4 | 9.88420 |
| 5 | 12.35525 |
| 10 | 24.71050 |
| 20 | 49.42100 |
| 50 | 123.55250 |
Acres to hectares
| Acres | Hectares |
|---|---|
| 1 | 0.40469 |
| 5 | 2.02343 |
| 10 | 4.04686 |
| 20 | 8.09371 |
| 50 | 20.23428 |
| 100 | 40.46856 |
Historical background
The hectare has a straightforward story - born during teh French Revolution (1795) as part of the metric system. Its name combines "hecto-" (100) with "are" (100m²), making it 100 ares. Simple and decimal, just like metric likes it.
Acres? That's a wilder ride. Originating from Old English "æcer" (field), it represented the area oxen could plow in a day. Medieval versions varied by region until 18th-century Britain standardized it. Fun fact: Scotland's "Scottish acre" was 1.27 English acres until 1824!
Interesting facts?
- Central Park in New York: 341 hectares (843 acres)
- Vatican City: 44 hectares (109 acres)
- 1 hectare of rainforest stores 200+ tonnes of carbon
- American football field: 1.32 acres (0.53 hectares)
- The average UK farm is 81 hectares (200 acres)
FAQ
Hectares are metric units used globally, while acres remain common in the US/UK. Conversion helps compare land sizes internationally.
Our tool uses 5 decimal places (1 ha = 2.47105 ac). For casual use, 2.47 is sufficient.
Hectares dominate in Europe, Asia, and South America. Acres are used in the US, UK, and some Commonwealth nations.
Yes! One hectare equals about 2.47 acres. Picture a sports field vs two American football fields.
Absolutely. Divide acres by 2.47105 or use our Acre to Hectare converter above.