Hectare to Acre Converter

Convert between hectares and acres instantly — no signup, nothing sent to a server.

Edit either field — the other updates automatically. 1 ha = 2.47105 acres.

Formula, conversion table & examples

Formula

ac = ha × 2.47

ha = ac ÷ 2.47

Hectares to Acres conversion table

Hectares (ha) Acres (ac)
1 2.47
5 12.36
10 24.71
50 123.55
100 247.11
500 1235.53

Worked examples

  • 1 ha = 1 × 2.47 = 2.47 ac
  • 5 ha = 5 × 2.47 = 12.36 ac
  • 1235.53 ac back to Hectares: 1235.53 ÷ 2.47 = 500 ha

How to convert hectares to acres

  1. 1

    Enter a value in either field

    Type an area into the hectares field, or the acres field — either direction works.

  2. 2

    Read the converted value

    The other field updates instantly as you type.

  3. 3

    Adjust as needed

    Keep editing either field to try different land areas.

Example use cases

1

Real estate & land listings

Convert land or farm listings between hectares and acres for buyers used to different systems.

2

Agriculture & farming

Convert field or crop area between hectares and acres for planning or yield calculations.

3

Forestry & conservation

Convert reported land area figures between the two common area units.

4

Urban planning

Convert plot or zoning area between hectares and acres for cross-region comparisons.

Frequently asked questions

How do I convert hectares to acres?

Multiply the area in hectares by 2.47105. For example, 1 ha × 2.47105 ≈ 2.47 acres.

How do I convert acres to hectares?

Divide the area in acres by 2.47105, or multiply by 0.404686. For example, 2.47 acres × 0.404686 ≈ 1 ha.

Where does 2.47105 come from?

One hectare is exactly 10,000 square meters. Dividing that by the exact size of one acre (4,046.8564224 sq m) gives about 2.47105 acres per hectare.

Is anything I type sent to a server?

No. Every conversion runs entirely in your browser — nothing is transmitted or logged.