Acre to HectareConverter
Instantly convert Acre (ac) to Hectare (ha). Free, accurate, and easy to use.
How to Convert Acre to Hectare
To convert Acre (ac) to Hectare (ha), multiply your value by 0.40468564.
Example: 5 ac × 0.40468564 = 2.02342821 ha
What is a Acre?
The acre is an imperial unit of area equal to 43,560 square feet or approximately 4,046.86 square meters (0.4047 hectares). It originated in medieval England as the amount of land a yoke of oxen could plow in one day. US farmland, suburban plots, and national park sizes are commonly expressed in acres. One acre is roughly the size of an American football field minus the end zones.
What is a Hectare?
The hectare equals exactly 10,000 square meters (100 m × 100 m) or approximately 2.471 acres. Although not formally an SI unit, it is accepted for use with the SI and is the international standard for agricultural fields, forests, and urban land parcels. One square kilometer contains exactly 100 hectares. A standard international football (soccer) pitch measures 0.7–0.8 hectares.
Acre to Hectare Conversion Table
| Acre (ac) | Hectare (ha) |
|---|---|
| 0.001 ac | 0.00040469 ha |
| 0.01 ac | 0.00404686 ha |
| 0.1 ac | 0.04046856 ha |
| 0.5 ac | 0.20234282 ha |
| 1 ac | 0.40468564 ha |
| 2 ac | 0.80937128 ha |
| 5 ac | 2.02342821 ha |
| 10 ac | 4.04685642 ha |
| 20 ac | 8.09371284 ha |
| 50 ac | 20.2342821 ha |
| 100 ac | 40.4685642 ha |
| 200 ac | 80.9371284 ha |
| 500 ac | 202.342821 ha |
| 1000 ac | 404.685642 ha |
| 5000 ac | 2023.42821 ha |
| 10000 ac | 4046.85642 ha |
| 50000 ac | 20234.2821 ha |
| 100000 ac | 40468.5642 ha |
| 1000000 ac | 404685.642 ha |
| 1000000000 ac | 404685642 ha |
Frequently Asked Questions
How do I convert Acre to Hectare?
Multiply the Acre value by 0.40468564. Formula: ha = ac × 0.40468564. Example: 10 ac = 4.04685642 ha.
How many Hectare are in one Acre?
One Acre (ac) equals 0.40468564 Hectare (ha).
How many Acre are in one Hectare?
One Hectare (ha) equals 2.47105382 Acre (ac).
What is the exact conversion factor from Acre to Hectare?
The conversion factor is 0.40468564. Multiply any ac value by this number to get ha. For the reverse, multiply by 2.47105382.
How do I convert Hectare back to Acre?
Divide by 0.40468564, or equivalently multiply by 2.47105382. Formula: ac = ha ÷ 0.40468564.
Is the Acre-to-Hectare conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 0.40468564 is exact and universally agreed upon.