Convert Acres to Hectares
1 ac = 0.404686 ha
Conversion Table
| acres (ac) | hectares (ha) |
|---|---|
| 0.5 | 0.202343 |
| 1 | 0.404686 |
| 2 | 0.809372 |
| 5 | 2.0234 |
| 10 | 4.0469 |
| 25 | 10.1172 |
| 50 | 20.2343 |
| 100 | 40.4686 |
| 250 | 101.17 |
| 500 | 202.34 |
| 1000 | 404.69 |
How to Convert acres to hectares
To convert acres to hectares, multiply the value by the conversion factor:
For example: 10 ac = 4.0469 ha
Related Converters
About acres and hectares
The Conversion Formula
To convert acres to hectares, multiply the value by the conversion factor: 1 ac = 0.404686 ha. For a worked example, suppose you need to convert 25 ac to hectares: 25 × 0.404686 = 10.1172 ha. To convert in the opposite direction, divide by 0.404686, or equivalently multiply by 2.4711.
About acres
The acre's origins are agricultural: it was originally defined as the amount of land a yoke of oxen could plow in a single day. This 'furlong' (furrow long) by 'chain' definition standardized land ownership in medieval England. Today, the acre remains the king of land measurement in the US and UK. There are 640 acres in a square mile. acres are commonly used in US Farm land, Residential lots (US), Public parks (US/UK), and Golf courses, Deforestation stats (US media).
An American football field (including end zones) is about 1.32 acres.
About hectares
The hectare (ha) is the primary unit for measuring land in the metric world. Derived from 'hecto' (hundred) and 'are' (a historical unit of 100 m²), a hectare is 100 ares, or 10,000 square meters. It is approximately 2.47 acres. It is the language of international agriculture, forestry, and rural planning. hectares are commonly used in Farm sizes, Vineyards, Forestry management, and Real estate (Europe/Asia), Wildfire reporting.
A standard international rugby field is roughly 1 hectare.
When Would You Convert acres to hectares?
Converting between acres and hectares is one of the most common area conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 ac = 0.404686 ha) memorized or bookmarked can save time in professional and everyday contexts alike.