Acre [ac] to Square Kilometer [km2] Converter
How to Convert Acre to Square Kilometer
1 ac = 0.004046860338724812 km2
1 km2 = 247.10514233241506 ac
Example: convert 10 ac to km2:
10 ac = 10 x 0.004046860338724812 = 0.04046860338724812 km2
Acre
Definition: An acre (ac) is a unit of area used in the imperial and US customary systems. It is equal to 43,560 square feet, or approximately 4,047 square meters.
History/origin: The acre has ancient origins, dating back to medieval England. It was originally defined as the area of land that a yoke of oxen could plow in a day.
Current use: Acres are commonly used in agriculture, land management, and real estate to measure larger areas of land. It's a prevalent unit in the United States and some other countries.
Square Kilometer
Definition: A square kilometer (km²) is a unit of area equal to a square that is 1 kilometer on each side. It is a multiple of the square meter, the SI unit of area.
History/origin: The square kilometer is derived from the kilometer, which is part of the metric system established in France in the late 18th century. The metric system was designed to be a standardized and coherent system of measurement based on decimal multiples.
Current use: Square kilometers are used to measure large areas, such as the size of cities, countries, lakes, and other geographical features. It's a common unit in geography, cartography, and environmental studies.
Acre to Square Kilometer Conversion Table
| Units.ac.singular [ac] | Units.km2.singular [km2] |
|---|---|
| 0.01 ac | 0.000040468603387248124 km2 |
| 0.1 ac | 0.00040468603387248123 km2 |
| 1 ac | 0.004046860338724812 km2 |
| 10 ac | 0.04046860338724812 km2 |
| 50 ac | 0.2023430169362406 km2 |
| 100 ac | 0.4046860338724812 km2 |
| 1000 ac | 4.046860338724812 km2 |
| 10000 ac | 40.46860338724812 km2 |