Acre to Square Kilometer
1 Acre = 0.00404686 Square Kilometer
Conversion Formula
To convert Acre to Square Kilometer, multiply the value by 0.00404686.
Acre × 0.00404686 = Square Kilometer
Quick Reference
| ac | km² |
|---|---|
| 1 | 0.00404686 |
| 5 | 0.0202343 |
| 10 | 0.0404686 |
| 25 | 0.101171 |
| 50 | 0.202343 |
| 100 | 0.404686 |
| 500 | 2.02343 |
| 1000 | 4.04686 |
What is Acre?
The acre (symbol: ac) is a unit of land area used in the imperial and US customary systems.
It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 43,560 square feet.
Common Uses
Acres are primarily used to measure large plots of land, such as farms, estates, and parks, particularly in the United States and the United Kingdom.
What is Square Kilometer?
The square kilometer (symbol: km²) is an SI unit of area.
It is defined as the area of a square with sides of one kilometer in length. One square kilometer is equal to 1,000,000 square meters or about 100 hectares.
Common Uses
The square kilometer is used to measure the area of large features, such as cities, islands, and entire countries. It is also common in geography and urban planning.
How many square kilometer are in a acre?
There are 0.00404686 square kilometer in 1 acre.