Acres to Hectares (ac to ha)
Free online acre to hectare converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
AREA CONVERTER — INSTANT RESULT
Formula: multiply the acre value by 0.40468564 — i.e. ha = ac × 0.40468564
Quick check: 1 ac = 0.40468564 ha
Quick check: 1 ac = 0.40468564 ha
Acres to Hectares conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 ac | 0.40468564 ha |
| 2 ac | 0.80937128 ha |
| 3 ac | 1.21405693 ha |
| 4 ac | 1.61874257 ha |
| 5 ac | 2.02342821 ha |
| 6 ac | 2.42811385 ha |
| 7 ac | 2.8327995 ha |
| 8 ac | 3.23748514 ha |
| 9 ac | 3.64217078 ha |
| 10 ac | 4.04685642 ha |
| 15 ac | 6.07028463 ha |
| 20 ac | 8.09371284 ha |
| 25 ac | 10.11714106 ha |
| 30 ac | 12.14056927 ha |
| 40 ac | 16.18742569 ha |
| 50 ac | 20.23428211 ha |
| 75 ac | 30.35142317 ha |
| 100 ac | 40.46856422 ha |
| 250 ac | 101.17141056 ha |
| 500 ac | 202.34282112 ha |
| 1,000 ac | 404.68564224 ha |
How to convert acres to hectares
To convert acres to hectares, multiply the amount in acres by 0.40468564. For example, 10 ac = 4.04685642 ha. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert between metric and imperial/US land area units, including the acre (43,560 ft² exactly) and hectare (10,000 m²) used worldwide for land measurement.
Frequently asked questions
How many hectares are in one acre?
One acre is exactly 0.40468564 hectares.
How do I convert ac to ha?
Multiply the ac value by 0.40468564 to get ha. The converter at the top of this page does this automatically and works in both directions.
How much is 100 acres in hectares?
100 acres equals 40.46856422 hectares.