Acres to Hectares
1 acre = 0.404686 hectares (ha)
Convert acres to hectares instantly. 1 acre = 0.404686 hectares. Free, accurate, with conversion table and formula.
Acre (ac)
Hectare (ha)
| Unit | 1 ac equals |
|---|---|
| Square Millimeter (mm²) | 4.04686e+9 |
| Square Centimeter (cm²) | 4.04686e+7 |
| Square Meter (m²) | 4,046.86 |
| Hectare (ha) | 0.404686 |
| Square Kilometer (km²) | 0.00404686 |
| Square Inch (in²) | 6.27264e+6 |
| Square Foot (ft²) | 43,560 |
| Square Yard (yd²) | 4,840 |
| Acre (ac) | 1 |
| Square Mile (mi²) | 0.0015625 |
How to convert acres to hectares
- 1Take your value in acres (ac).
- 2Multiply by 0.404686.
- 3The result is your value in hectares (ha).
Acres to Hectares conversion table
| Acres (ac) | Hectares (ha) |
|---|---|
| 1 | 0.404686 |
| 2 | 0.809371 |
| 5 | 2.02343 |
| 10 | 4.04686 |
| 25 | 10.1171 |
| 50 | 20.2343 |
| 100 | 40.4686 |
| 250 | 101.171 |
| 500 | 202.343 |
| 1,000 | 404.686 |
Frequently asked
How many hectares are in a acre?
1 acre equals 0.404686 hectares (ha).
How do I convert acres to hectares?
Multiply the number of acres by 0.404686 to get hectares.
What is 10 acres in hectares?
10 ac equals 4.047 ha.
What is 100 acres in hectares?
100 ac equals 40.47 ha.
How do I convert hectares back to acres?
Multiply hectares by 2.47105 (the reciprocal) or use the swap button above.
Where you'll actually use this
Area measures two-dimensional surface — the size of a floor, a country, or a piece of land. Metric uses square meters and hectares; imperial uses square feet and acres.
- Real estate
Apartment listings show square feet in the US, square meters in Europe, and tsubo or ping in parts of Asia.
- Farming & land
Farmland is sold in acres in North America and hectares in most of the rest of the world (1 ha ≈ 2.47 ac).
- Flooring & paint
Material coverage is often quoted per square meter or square foot — buy the wrong unit and you're off by an order of magnitude.
Common mistakes to avoid
- Squaring the linear factor
1 ft = 0.3048 m, so 1 ft² = 0.3048² ≈ 0.0929 m². Don't reuse the linear ratio.
- Hectare vs acre
A hectare is about 2.47 acres. Easy mix-up when comparing land listings across continents.
Did you know?
A standard FIFA pitch is roughly 7,000 m² — a handy mental shortcut for hectare estimates.
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