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acre Unit Converter
Background:
acre [ac]

Originating in medieval England, it originally referred to the area of land that could be plowed by an ox in one day. It is primarily used for land measurement in English-speaking countries such as the United States and the United Kingdom. One acre ≈ 4047 square meters, roughly equivalent to 60% of a standard football field.

square kilometer [km2]

Originating in medieval England, it originally referred to the area of land that could be plowed by an ox in one day. It is primarily used for land measurement in English-speaking countries such as the United States and the United Kingdom. One acre ≈ 4047 square meters, roughly equivalent to 60% of a standard football field.

Convert acre [ac] to square kilometer [km2]
acre [ac]square kilometer [km2]
1 ac0.004046860338724812 km2
2 ac0.008093720677449625 km2
3 ac0.012140581016174436 km2
4 ac0.01618744135489925 km2
5 ac0.02023430169362406 km2
10 ac0.04046860338724812 km2
20 ac0.08093720677449624 km2
30 ac0.12140581016174436 km2
acre [ac]square kilometer [km2]
40 ac0.16187441354899249 km2
50 ac0.2023430169362406 km2
100 ac0.4046860338724812 km2
200 ac0.8093720677449624 km2
300 ac1.2140581016174437 km2
400 ac1.6187441354899248 km2
500 ac2.023430169362406 km2
1000 ac4.046860338724812 km2