# Acre to Square kilometer Unit Converter - 1 Acre in Square kilometer

This calculator allows you to convert from Acre to Square kilometer and in a reverse direction. To convert from Acre to Square kilometer, enter the amount of Acre into the first input and to convert from Square kilometer to Acre, enter the amount of Square kilometer into the second input.

1 Acre = 0.0040468564223999 Square kilometer

## Acre to Square kilometer?

### How to convert from Acre to Square kilometer?

To convert Acre to Square kilometer: Every 1 Acre equals 0.0040468564223999 Square kilometer. For example, 100 Acre equal 100 * 0.0040468564223999 = 0.40468564223999 Square kilometer and so on..

Acre to Square meter | Acre to Square foot | Acre to Square centimeter | Acre to Hectare | Acre to Square inch | Acre to Square yard | Acre to Square mile |

## Acre

What does an acre mean?

During middle ages, acre was first introduced but it's definition was not clear. It was defined as the amount of land plowed in one day by one man and an ox. No doubt that this definition can't be longer used as oxen don't work with the same rate.

Nowadays, Acre is a unit of area used commonly for measuring tracts of land which equals 43,560 square feet. We can say that the area of New York City is approximately 300,000 acres.

Acre can measure any area- rectangles, circles or even hexagons- regardless of it's shape.

The commercial acre is another acre which is used to measure roads and alleyways.

United Sates is using another acre to measure roads and alleyways, it is called the commercial acre. It is approximately 82.6 percent of an international acre(36,000 square feet).

,