Acres to Hectares
Convert acres to hectares instantly, with a reference table.
Acres to Hectares at a glance
Acres to Hectares is a free online converter you can use right now to convert acres to hectares instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Acres to Hectares conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.404686 ha |
| 2 ac | 0.809371 ha |
| 3 ac | 1.214057 ha |
| 5 ac | 2.023428 ha |
| 10 ac | 4.046856 ha |
| 25 ac | 10.117141 ha |
| 50 ac | 20.234282 ha |
| 100 ac | 40.468564 ha |
| 500 ac | 202.34282 ha |
| 1000 ac | 404.68564 ha |
About Acres to Hectares
Convert acres to hectares instantly, with a reference table of common values. The factor is exact: 1 ac = 0.404685642 ha.
Needed for agricultural subsidy, land registry and planning paperwork in metric countries, which record area in hectares.
The acre was originally the area a yoke of oxen could plough in a day โ a working unit rather than a geometric one, which is why it is an awkward 43,560 square feet. It descends from a strip one furlong long by one chain wide. It remains the standard unit for land area in the United States and the United Kingdom, particularly in agriculture and property sales. An acre is about 4,047 mยฒ, or roughly 60% of a football pitch.
Worked through with real numbers: 1 ac is 0.404686 ha, 50 ac is 20.234 ha, 500 ac is 202.343 ha.
As for the other side of the conversion: A hectare is about 2.47 acres, and slightly larger than an international rugby pitch.
Area conversions square the underlying length factor, which is why they feel counterintuitive. A metre is about 3.28 feet, but a square metre is about 10.76 square feet โ the factor is squared, not carried across.
How to use Acres to Hectares
- Enter the number of acres you want to convert.
- The equivalent in hectares appears instantly โ there is no button to press.
- Check the reference table for common Acres to Hectares values.
Frequently asked questions
How do I convert acres to hectares?
Multiply your acres figure by 0.404685642 to get hectares โ or type a value above and read the answer straight off.
How many hectares are in one acre?
1 ac = 0.404685642 ha.
When would I need to convert acres to hectares?
Needed for agricultural subsidy, land registry and planning paperwork in metric countries, which record area in hectares.
What is a acre, exactly?
The acre was originally the area a yoke of oxen could plough in a day โ a working unit rather than a geometric one, which is why it is an awkward 43,560 square feet. It descends from a strip one furlong long by one chain wide. An acre is about 4,047 mยฒ, or roughly 60% of a football pitch.
Where is the hectare actually used?
It is the standard unit for agricultural land, forestry and land-use planning in metric countries. A hectare is about 2.47 acres, and slightly larger than an international rugby pitch.
Is there anything tricky about area conversions?
Area conversions square the underlying length factor, which is why they feel counterintuitive. A metre is about 3.28 feet, but a square metre is about 10.76 square feet โ the factor is squared, not carried across.
Is this converter accurate?
Yes. It uses the exact standard factor of 1 ac = 0.404685642 ha, and the conversion runs in your browser so nothing is uploaded.