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US Survey Acres To Hectares Converter

Convert between Hectares and US Survey Acres. Select a direction, enter a value, and compare results in the conversion table. US Survey Acres are based on the legacy U.S. survey foot.






0 ha

Conversion Table

ac (US survey)ha

How This Converter Works

Convert between Hectares (ha) and US Survey Acres (ac (US survey)). Select either direction to convert directly.

Formula or rule

US Survey Acres = Hectares * 2.47104393046628; Hectares = US Survey Acres / 2.47104393046628

Example

Input
1 ac (US survey)
Calculation
1 * 0.404687260987425 = 0.404687260987425
Result
0.404687260987425 ha

Notes

Area factors use squared linear unit definitions, including the international foot and statute mile. US Survey Acres are based on 43,560 square U.S. survey feet and are intended for historical or legacy surveying; ordinary Acres use the international foot.

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