⬛ Area converter
Acres to Hectares Converter
Convert acres (ac) to hectares (ha) instantly. Includes formula, worked example, and a full reference chart from 1 to 1000 ac.
Acres
ac
Hectares
ha
How to convert acres to hectares
One acre equals approximately 0.40469 hectares. To convert acres to hectares, multiply the acre value by 0.40469.
Formula
ha = acres × 0.40469
Worked example
Convert 100 ac to ha:
100 ac × 0.40468564224 → 40.468564 ha
100 ac × 0.40468564224 → 40.468564 ha
Common acres to hectares values
Quick reference for common acre values:
- 1 ac = 0.404686 ha
- 5 ac = 2.023428 ha
- 10 ac = 4.046856 ha
- 100 ac = 40.468564 ha
Acres to Hectares conversion table
Full reference chart — useful for cooking, fitness, engineering, or homework.
| Acres | Hectares |
|---|---|
| 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 |
| 20 ac | 8.093713 ha |
| 25 ac | 10.117141 ha |
| 50 ac | 20.234282 ha |
| 75 ac | 30.351423 ha |
| 100 ac | 40.468564 ha |
| 250 ac | 101.171411 ha |
| 500 ac | 202.342821 ha |
| 1000 ac | 404.685642 ha |
Hectares to Acres table (reverse)
Looking the other way? Here's the reverse conversion:
| Hectares | Acres |
|---|---|
| 1 ha | 2.471054 ac |
| 2 ha | 4.942108 ac |
| 3 ha | 7.413161 ac |
| 5 ha | 12.355269 ac |
| 10 ha | 24.710538 ac |
| 20 ha | 49.421076 ac |
| 25 ha | 61.776345 ac |
| 50 ha | 123.552691 ac |
| 75 ha | 185.329036 ac |
| 100 ha | 247.105381 ac |
| 250 ha | 617.763454 ac |
| 500 ha | 1,235.5269 ac |
| 1000 ha | 2,471.0538 ac |
Frequently asked questions
How many hectares are in 1 acre?
There are 0.404686 ha in 1 ac.
How many hectares are in 10 acres?
10 ac = 4.046856 ha.
How many acres are in 1 hectare?
1 ha = 2.471054 ac.
What is the formula to convert acres to hectares?
The formula is ha = acres × 0.40469.