Conversion Formula:
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The acre is a unit of land area used in the imperial and US customary systems, while the hectare is a metric unit of area. One acre equals exactly 0.404686 hectares.
The calculator uses the simple conversion formula:
Where:
Details: This conversion is essential for land measurement, agriculture, forestry, and real estate when working between metric and imperial systems.
Tips: Simply enter the acre value you want to convert. The calculator will instantly provide the equivalent area in hectares.
Q1: Why is the conversion factor not a round number?
A: The exact conversion comes from the definition of an acre (1 chain × 1 furlong) and hectare (10,000 square meters) in their respective measurement systems.
Q2: How precise is this conversion?
A: The conversion factor 0.404686 is exact, not an approximation.
Q3: When would I need to convert acres to hectares?
A: Common when dealing with international land transactions, scientific research, or comparing agricultural yields between countries.
Q4: Are there different types of acres?
A: The international acre (used here) is standard, but some countries historically used slightly different acre definitions.
Q5: How big is a hectare visually?
A: A hectare is 100m × 100m - about 1.4 times the size of a soccer field (including surrounding area).