Acres to Hectares
Convert acres to hectares instantly and accurately, both ways.
🔒 Instant, accurate, and runs entirely in your browser
Formula: 1 ac = 0.4047 ha
Acres to Hectares
To convert acres to hectares, multiply the value by 0.4047. For example, 1 ac is 0.4047 ha. Type any number above and the result updates instantly — and you can convert in the other direction just as easily. Everything runs in your browser.
Acres to Hectares conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.4047 ha |
| 2 ac | 0.8094 ha |
| 5 ac | 2.0234 ha |
| 10 ac | 4.0469 ha |
| 20 ac | 8.0937 ha |
| 50 ac | 20.2343 ha |
| 100 ac | 40.4686 ha |
| 200 ac | 80.9371 ha |
Other popular conversions
How it works
Three steps. No sign-up, no upload, no wait.
1
Enter a value
Type a number of acres in the first box.
2
Read the result
The value in hectares updates instantly.
3
Convert either way
You can also type in the hectares box to convert back.
🔒
Private by design.Everything happens right here in your browser. Your files are never uploaded — we never see them.
Frequently Asked Questions
How many hectares are in an acre? ▼
One acre equals 0.4047 hectares.
What is the formula to convert acres to hectares? ▼
Use
1 ac = 0.4047 ha.Is this converter accurate? ▼
Yes — it uses the exact internationally-defined conversion factor and updates live as you type. It runs entirely in your browser.
Do I need to install anything or sign up? ▼
No. It works instantly in your browser — no account, no install, nothing uploaded.