For the state of Brazil, see Acre (state).

An acre is an English unit of area, which is also used in the United States and some Commonwealth countries. It is most often used to describe areas of land.

• The international acre is 4,046.8564224 m². This is based on international foot of 0.3048 m.
• The U.S. survey acre is 4,046.87261 m². This is based on the U.S. survey foot of ¹²⁰⁰⁄₃₉₃₇ m.

An acre is equivalent to approximately:

• a square of side 208.71 feet (63.61 metres).

External links

• The Units of Measurement Regulations 1995
• NIST Handbook 44

Measurement

Acre | Акър | Acre (arealenhed) | Acre (Einheit) | Acre | Akreo (mezurunuo) | Acre (unité) | אקר | Acre (oppervlaktemaat) | エーカー | Acre (måleenhet) | Akr | Acre (unidade) | Акр | Aker | Eekkeri | ஏக்கர் | Mẫu Anh | Акр | 英亩