Acre is area unit, symbol: [ac]. Definition of 1 acre ≡ 1 ch × 10 ch = 4840 sq yd = 1⁄640 sq mi. International and US survey acre ≡ 4840 × 0.9144 × 0.9144 = 4046.8564224 m². Compared to square metre, acre is bigger unit.
• 1 [ac] = (exactly) `4046.8564224` [m²]
• 1 [m²] = (exactly) `1/(4046.8564224)` [ac] = 0.00024710538146717 [ac]
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Multiply convert of acre to common area units:
[ac]Area units sort by name in ABC order
