Acres (ac) to Hectares (ha) Conversion
Acres
The acre is a unit of area equal to exactly 4,046.8564224 square metres, the standard unit for land measurement in the United States and United Kingdom. Its origin lies in medieval English agriculture: an acre was the amount of land a yoke of oxen could plough in a single day, standardised as a furlong (220 yards) long and a chain (22 yards) wide — exactly 43,560 square feet. One square mile contains exactly 640 acres.
Hectares
The hectare is a unit of area equal to exactly 10,000 square metres (100 m × 100 m), the standard unit for measuring agricultural land, forest area, and nature reserves internationally. The word derives from the Greek hekaton (hundred) and the French are (100 m²). One hectare is approximately 2.471 acres, and global food production statistics and deforestation rates are almost universally expressed in hectares.
| Acres (ac) | Hectares (ha) |
|---|---|
| 0.1 ac | 0.0405 ha |
| 1 ac | 0.4047 ha |
| 2 ac | 0.8094 ha |
| 3 ac | 1.2141 ha |
| 5 ac | 2.0234 ha |
| 10 ac | 4.0469 ha |
| 20 ac | 8.0937 ha |
| 30 ac | 12.1406 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
| 1000 ac | 404.6856 ha |
Frequently Asked Questions (FAQ)
How many hectares are in 1 acres?
1 acres (ac) is exactly 0.404686 hectares (ha).
How do I convert acres to hectares?
Multiply the value in acres by 0.404686 to get the result in hectares. Or use the converter above — type any number and see the result instantly.