Acres to Hectares Converter

Express a land area in hectares from international acres.

Express ac As Decimal ha

1 ac = 4046.8564224 m² exactly and 1 ha = 10000 m² exactly.

Do not treat the shortened 2.47105 acres-per-hectare value as the definition.

Land Or Map Context

10 ac becomes exactly 4.0468564224 ha.

Acre is based on the international foot; hectare is exactly 10000 square metres.

What The Number Represents

Express a land area in hectares from international acres.

Learn More About This Topic

Use the supporting references when the assumptions behind Acres to Hectares matter as much as the immediate result. For more context, read how common area units compare and the acres-to-square-feet land formula before using the result in a real workflow.

Frequently Asked Questions

1 ac = 4046.8564224 m² exactly and 1 ha = 10000 m² exactly.

Do not treat the shortened 2.47105 acres-per-hectare value as the definition. Acre is based on the international foot; hectare is exactly 10000 square metres.

Related Converter Tools

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SQM to SQFT

Express a square-metre area in square feet. Square foot uses the international foot.

Acres to SQFT

Expand a parcel area from acres into square feet. Acre and square foot use the international-foot basis on these pages.

SQFT to Acres

Group square feet into acres. Acre and square foot use the international-foot basis on these pages.

Hectares to Acres

Reverse the same workflow when you need Hectares to Acres output.

Acres to SQM

Convert an acre parcel area into square metres. Acre is derived from the international foot.