Units of measurement
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Calculations
Square chain (ch²)
Acre (ac)
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Information
Square chain (ch²)
A square chain (ch²) is a British unit of area measurement equal to 404.69 m² or 1/10 acre.
Acre (ac)
An acre (ac) is a traditional land measurement unit in the US and UK, equal to 4046.86 m² (approximately 0.4 ha).