Hectares to Acres Converter
Convert hectares to acres for international farmland listings, national park sizes, and environmental reports. Hectares are the metric standard for large land areas, while acres dominate in US and UK land contexts.
Formula
Multiply hectares by 2.47105 to get acres. To reverse, divide acres by 2.47105 to get hectares.
Quick reference
| Hectare (ha) | Acre (ac) |
|---|---|
| 1 | 2.471054 |
| 2 | 4.942108 |
| 5 | 12.35527 |
| 10 | 24.71054 |
| 20 | 49.42108 |
| 50 | 123.5527 |
| 100 | 247.1054 |
| 200 | 494.2108 |
| 500 | 1,235.527 |
| 1000 | 2,471.054 |
About these units
Hectare
The hectare (100m × 100m = 10,000 m²) was introduced with the metric system and is formally recognized as a non-SI unit acceptable for use with SI. It is the preferred unit for agricultural land area worldwide in metric countries.
Acre
The acre was the dominant agricultural land unit in England and its colonies. Though not part of the SI system, it remains widely used in the US and UK for real estate, farming, and national park measurements.
Frequently asked questions
One hectare ≈ 2.471 acres.
100 × 2.47105 ≈ 247.1 acres — roughly a square kilometer of farmland.
Yes. One hectare equals approximately 2.47 acres.