Hectare to Acre Converter – Hectares to Acres and Back
Hectare to Acre Converter
Convert large scale land metrics instantly with global decimal precision
Quick answer
To convert hectare to acre, multiply the hectares by 2.47105. One hectare is 10,000 m², which equals about 2.47105 acres, so 5 ha × 2.47105 = 12.3553 acres. To go from acres to hectares, divide by 2.47105: 1 acre = 0.4047 ha.
Our free hectare to acre converter turns metric land areas into acres (and back) in one click. Along with the answer, it shows the constant, the formula with your number, and the area in square meters. Farmers, land buyers, surveyors and students use a hectare to acre conversion whenever a document uses the other system.
What Is a Hectare and What Is an Acre?
A hectare (ha) is a metric unit of area equal to a square 100 meters on each side, or 10,000 square meters. It is the standard land unit in most of the world, including Europe, Africa, Australia and much of Asia. An acre is an imperial unit equal to 43,560 square feet, or about 4,046.86 m², and is still used in the United States, the UK, Pakistan and India.
Because a hectare is roughly two and a half times bigger than an acre, the acre figure is always the larger number in a hectare to acre conversion.
Hectare to Acre Formula
| Conversion | Formula | Example |
|---|---|---|
| Hectares to acres | acres = ha × 2.47105 | 10 ha = 24.7105 acres |
| Acres to hectares | ha = acres ÷ 2.47105 | 10 acres = 4.0469 ha |
| Hectares to square meters | m² = ha × 10,000 | 2.5 ha = 25,000 m² |
How to Use the Hectare to Acre Converter
Step 1: Choose Hectares to Acres or Acres to Hectares
Click Hectares to Acres or Acres to Hectares. The label and unit badge update to match. We keep Hectares to Acres selected.
Step 2: Enter the Area in Hectares
Type the land area into the box. Decimals such as 0.25 are fine. In our example we enter 5 hectares.
Step 3: Click Convert Area
Press Convert Area. If the field is empty or the number is negative, the tool asks for a valid area.
Step 4: Read Acres and Square Meters
The hectare to acre result shows 12.3553 acres. Below it are the constant (1 hectare = 2.47105 acres), the formula with your number, and the square meter equivalent: 50,000 m².
Hectare to Acre Chart
| Hectares | Acres | Square meters |
|---|---|---|
| 0.1 ha | 0.2471 | 1,000 |
| 0.25 ha | 0.6178 | 2,500 |
| 0.5 ha | 1.2355 | 5,000 |
| 1 ha | 2.4711 | 10,000 |
| 2 ha | 4.9421 | 20,000 |
| 2.5 ha | 6.1776 | 25,000 |
| 5 ha | 12.3553 | 50,000 |
| 10 ha | 24.7105 | 100,000 |
| 20 ha | 49.4211 | 200,000 |
| 50 ha | 123.5527 | 500,000 |
| 100 ha | 247.1054 | 1,000,000 |
Acre to Hectare Chart
| Acres | Hectares |
|---|---|
| 0.5 acre | 0.2023 ha |
| 1 acre | 0.4047 ha |
| 2 acres | 0.8094 ha |
| 2.5 acres | 1.0117 ha |
| 5 acres | 2.0234 ha |
| 10 acres | 4.0469 ha |
| 20 acres | 8.0937 ha |
| 50 acres | 20.2343 ha |
| 100 acres | 40.4686 ha |
| 640 acres (1 sq mile) | 258.9988 ha |
Quick Mental Shortcut
For a rough hectare to acre estimate, multiply by 2.5. 10 ha becomes about 25 acres (exact: 24.71). For acres to hectares, multiply by 0.4: 50 acres is about 20 ha (exact: 20.23). The error is around 1%, fine for conversation but not for a sale deed.
Common Mistakes to Avoid
- Dividing instead of multiplying. In a hectare to acre conversion the answer must be larger than the number you entered.
- Confusing hectares with square kilometers. 1 km² is 100 hectares, or 247.11 acres.
- Rounding the factor to 2.5 for big farms. On 1,000 ha the shortcut adds almost 29 acres.
- Mixing local units. Kanal, bigha and other local units vary by region. Convert them to acres first with our acre to square feet converter or the local tools below.
Frequently Asked Questions
How do I convert hectare to acre?
Multiply the hectares by 2.47105. For example, 10 ha × 2.47105 = 24.7105 acres.
How many acres is 1 hectare?
One hectare is about 2.4711 acres, or 10,000 square meters.
How many hectares is 1 acre?
One acre is about 0.4047 hectares, or 4,046.86 square meters.
Which is bigger, a hectare or an acre?
A hectare is bigger. It is roughly two and a half acres.
How many hectares are in a square kilometer?
There are 100 hectares in one square kilometer, which is about 247.11 acres.
Is this hectare to acre converter free?
Yes. It is free, needs no sign-up, and runs entirely in your browser.