Convert acres (ac) to hectares, square meters, feet, and other area units.
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The acre (ac) is a unit of area in the British Imperial system. Historically, it was defined as the area of land one man with an ox could plow in a day.
Common Acre Conversions
- 1 acre = 43,560 ft² — exact value by definition.
- 1 acre ≈ 4,046.86 m² — multiply by 4,046.86 to get square meters.
- 1 acre ≈ 0.4047 ha — one acre is approximately 40% of a hectare.
- 1 acre ≈ 4,840 yd² — multiply by 4,840 to get square yards.
- 640 acres = 1 mi² — one square mile equals 640 acres.
- 1 acre ≈ 0.00405 km² — multiply by 0.00405 to get square kilometers.
Acres are used in the US, the UK, and Canada for measuring land, parks, and forests. Converting acres to hectares is common when analyzing international agricultural data.