How do I convert acres to hectares?

Multiply the number of acres by 0.4046856422. For example, 5 ac = 2.02343 ha.

How many hectares are in one acre?

One acre equals 0.4046856422 hectares.

12 acres equals 4.85623 hectares.

Use the reverse Hectares to Acres converter: multiply hectares by 2.471053815.

Convert acres (ac) to hectares (ha) instantly — type a value below.

1 acre (ac) = 0.4046856422 hectares (ha)
1 hectare (ha) = 2.471053815 acres (ac)

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To convert acres to hectares, use this formula:

ha = ac × 0.4046856422 (or divide by 2.471053815)

An acre is 43,560 square feet, exactly 4,046.8564224 m². It is used for land and farm area in the US and UK.

A hectare is 10,000 square meters (a square 100 m × 100 m). It is the standard unit for land and farm area in metric countries.

How do I convert acres to hectares?: Multiply the number of acres by 0.4046856422. For example, 5 ac = 2.02343 ha.
How many hectares are in one acre?: One acre equals 0.4046856422 hectares.
What is 12 ac in hectares?: 12 acres equals 4.85623 hectares.
How do I convert hectares back to acres?: Use the reverse Hectares to Acres converter: multiply hectares by 2.471053815.

Need other units? Use the full area converter.