Acres to Hectares: 1 ac equals 0.404686 ha. To convert acres to hectares, multiply by 0.404686 (ha = ac × 0.4046856422). For example, 10 ac = 4.046856 ha.
How to Convert Acres to Hectares
To convert from acres to hectares, multiply the value by 0.404686. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Acres to Hectares:
ha = ac × 0.4046856422 - Hectares to Acres:
ac = ha ÷ 0.4046856422
Acres to Hectares Conversion Chart
| Acres (ac) | Hectares (ha) |
|---|---|
| 0.1 | 0.040469 |
| 0.25 | 0.101171 |
| 0.5 | 0.202343 |
| 1 | 0.404686 |
| 2 | 0.809371 |
| 3 | 1.214057 |
| 5 | 2.023428 |
| 10 | 4.046856 |
| 20 | 8.093713 |
| 25 | 10.117141 |
| 50 | 20.234282 |
| 100 | 40.468564 |
| 250 | 101.171411 |
| 1000 | 404.685642 |
Understanding the Units
What is an Acre?
An acre equals exactly 4,046.8564224 square meters, or 43,560 square feet.
From Old English æcer ("field"), historically the area a yoke of oxen could plow in a day.
What is a Hectare?
A hectare equals exactly 10,000 square meters, or 0.01 square kilometers.