Area converter
Acre to Hectare Converter
Convert ac to ha or reverse with one click. Type a value below for an instant result.
Acre ac
Hectare ha
ac → ha · runs in your browser, no server
How to convert acre to hectare
Acre (ac) and Hectare (ha) both measure area. Whether you are studying, traveling, cooking, or working on a project, converting between them should be fast and accurate.
Looking for the opposite direction? See our dedicated hectare to acre converter — same formula reversed, with content written for that direction.
The standard relationship used on this page means that 1 acre equals 0.404686 ha. Enter any number in the calculator — use the swap button to reverse the direction without leaving the page.
Converting 1 ac gives 0.404686 ha. This is a practical reference when switching between acre and hectare for real estate listings, land surveys, agriculture, and floor plans.
Need hectare to acre instead? Try our Hectare to Acre converter. hectare → acre
ac to ha conversion table
| ac | ha |
|---|---|
| 1 | 0.404686 |
| 5 | 2.02343 |
| 10 | 4.04686 |
| 25 | 10.11715 |
| 50 | 20.2343 |
| 100 | 40.4686 |
| 500 | 202.343 |
ha to ac conversion table
Or click the swap button in the converter to switch from ha to ac.
| ha | ac |
|---|---|
| 1 | 2.471051 |
| 5 | 12.355258 |
| 10 | 24.710516 |
| 25 | 61.776290 |
| 50 | 123.552581 |
| 100 | 247.105163 |
| 1000 | 2471.05163 |
Frequently asked questions
How many hectares are in 1 acre? +
One acre equals 0.404686 ha. Use the converter above for any value — results are calculated locally with full precision.
How do I convert ac to ha? +
Use the formula: ha = ac × 0.404686. Enter your value in the calculator and the result appears instantly. Click the swap button to convert ha back to ac.
How many acres are in 1 hectare? +
One hectare equals 2.471051 ac. Swap the converter direction to work backwards from ha to ac.
What is 10 ac in ha? +
10 ac is 4.04686 ha. See the conversion table on this page for more common values.
When would I convert acre to hectare? +
This conversion is useful for real estate listings, land surveys, agriculture, and floor plans. ConvertHub runs entirely in your browser — no data is uploaded to any server.
Is acre to hectare the same as hectare to acre? +
They are inverse operations. This page focuses on ac → ha with examples and tables for that direction. For ha → ac, use our separate hectare to acre converter page.