The acre is a unit of area equal to 43,560 square feet (4,046.86 m²), historically the area a team of oxen could plow in one day.

The hectare is a metric unit of area equal to 10,000 square meters, or 100 ares — the area of a square 100 meters on each side.

Where is Acre used in everyday life?

Real estate listings, farmland area, lot sizes, park acreages, and zoning regulations.

What are common mistakes when converting Acre?

Thinking an acre is a square shape — it can be any shape with the right total area. Also, confusing acre with hectare (1 acre ≈ 0.4 ha).

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acres to hectares

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23 units available

9 categories total

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"1" Acre

Every target unit at a glance

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Acre (ac)

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Square Meter(m²)Copy Answer
Square Kilometer(km²)Copy Answer
Square Hectometer(hm²)Copy Answer
Square Dekameter(dam²)Copy Answer
Square Decimeter(dm²)Copy Answer
Square Centimeter(cm²)Copy Answer
Square Millimeter(mm²)Copy Answer
Square Micrometer(µm²)Copy Answer
Square Nanometer(nm²)Copy Answer
Are(a)Copy Answer
Hectare(ha)Copy Answer
Square Inch(in²)Copy Answer
Square Foot(ft²)Copy Answer
Square Yard(yd²)Copy Answer
Square Mile(mi²)Copy Answer
Acre (US Survey)(ac (US))Copy Answer
Square Foot (US Survey)(ft² (US))Copy Answer
Square Mile (US Survey)(mi² (US))Copy Answer
Barn(b)Copy Answer
Circular Inch(circ in)Copy Answer
Section(section)Copy Answer
Township(township)Copy Answer

22 conversions shown

How to Convert Acre to Hectare

To convert acres to hectares: multiply by 0.4047. To m²: multiply by 4,046.86. To ft²: multiply by 43,560.

1 acre = 43,560 ft² = 4,840 yd² = 4,046.86 m² ≈ 0.4047 ha. 640 acres = 1 mi².

For example, 1 Acre (ac) = 0.4046856422 Hectare (ha).

Acre to Hectare — Common Values

Quick reference conversion table showing common Acre to Hectare values for area measurement
Acre (ac)	Hectare (ha)
0.001	0.0004046856422
0.01	0.004046856422
0.1	0.04046856422
0.5	0.2023428211
1	0.4046856422
2	0.8093712845
5	2.023428211
10	4.046856422
15	6.070284634
25	10.11714106
50	20.23428211
75	30.35142317
100	40.46856422
250	101.1714106
500	202.3428211
750	303.5142317
1000	404.6856422

Other Area Conversions