Convert Square kilometer (km²) to Acre
Category: Area
1 km2 = 247.105381 acre
High-precision rounding: 6 decimals
How to convert square kilometer (km²) to acre
Area equals length squared. It appears in real estate, land management, material takeoffs, and GIS. Square meters are SI standard; acres and hectares are common for land reporting in different regions.
This converter calculates Square kilometer (km²) to Acre values by using the correct conversion rule for the Area category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.
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Quick conversion table
Handy values for Square kilometer (km²) to Acre. Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Squaring a length conversion factor incorrectly or forgetting to square it.
Unit facts
- Acre: An acre is exactly 4,046.8564224 m²; traditional land measure in the Anglosphere.
About Square kilometer (km²)
Square kilometer (km²) is a unit used within the Area category.
About Acre
Acre
Exactly 4,046.8564224 m². Traditional land area in US/UK real estate and agriculture.
History: Medieval origins as the area ploughable in a day; later standardized to a fixed metric value.
Frequently asked questions
How many Acre are in one Square kilometer (km²)?
Is Square kilometer (km²) to Acre conversion exact?
What is the fastest way to convert Square kilometer (km²) to Acre?
Convert Square kilometer (km²) to other units
Convert other units to Acre
- ha → acre Hectare (ha)
- ft2 → acre Square foot (ft²)
- m2 → acre Square meter (m²)
- yd2 → acre Square yard (yd²)