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Area Converter

Result

... Acre = ... Square kilometer

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Acre to Square kilometer Converter

Use this page to convert acre values into square kilometer, with background details, formulas, a worked example, and a quick conversion table.

Acre

An acre equals 43,560 square feet.

History: The acre originates from old agricultural land measures.

Current use: Acres are used for plots of land, farms, and zoning.

Also written as ac, acres.

Square kilometer

A square kilometer equals one million square meters.

History: It is the large-area metric extension of the square meter.

Current use: Square kilometers are used for land area, maps, and regional statistics.

Also written as sq km, km2, sqkm, square kilometers, square kilometre, square kilometres.

Acre to Square kilometer table

Acre [ac]Square kilometer [sq km]
0.01 ac0.000040468564224 sq km
0.1 ac0.00040468564224 sq km
1 ac0.0040468564224 sq km
2 ac0.0080937128448 sq km
5 ac0.020234282112 sq km
10 ac0.040468564224 sq km
20 ac0.080937128448 sq km
50 ac0.20234282112 sq km
100 ac0.40468564224 sq km

Frequently asked questions

  • How many Square kilometer (sq km) are in one Acre (ac)?

    One Acre equals 0.0040468564224 Square kilometer.

  • How do you convert Acre to Square kilometer?

    Multiply the Acre value by 0.0040468564224 to get the result in Square kilometer.

  • How do you convert Square kilometer back to Acre?

    Multiply the Square kilometer value by 247.105381467165 to get back to Acre.

  • What is 12 Acre in Square kilometer?

    12 Acre equals 0.0485622770688 Square kilometer.