Acres to square kilometers

Area (acres):
Area (square kilometers):

The calculator allows you to convert acres to square kilometers (ac to km2).

Perform the reverse calculation: square kilometers to acres

1 acre = 0.00404686 square kilometer (approximately equal to)
1 square kilometer = 247.105381 acres (approximately equal to)

To convert acres to square kilometers, multiply by 0.00404686 (approximately).

Examples

To convert acres to km2, you can use the conversion formula:
1 ac = 0.00404686 km2

You can find below five examples of converting acres to square kilometers:

Example 1: convert 10 acres to square kilometers:

10 ac = 10 x 0.00404686 = 0.0404686 km²

Example 2: convert 25 acres to square kilometers:

25 ac = 25 x 0.00404686 = 0.1011715 km²

Example 3: convert 50 acres to square kilometers:

50 ac = 50 x 0.00404686 = 0.202343 km²

Example 4: convert 75 acres to square kilometers:

75 ac = 75 x 0.00404686 = 0.3035145 km²

Example 5: convert 100 acres to square kilometers:

100 ac = 100 x 0.00404686 = 0.404686 km²

Conversion table acres to square kilometers (ac to km2)

Acres (ac) to square kilometers (km2)
1 ac = 0.00404686 km2
2 ac = 0.0080937 km2
3 ac = 0.0121406 km2
4 ac = 0.0161875 km2
5 ac = 0.0202343 km2
6 ac = 0.0242812 km2
7 ac = 0.0283281 km2
8 ac = 0.0323749 km2
9 ac = 0.0364218 km2
10 ac = 0.0404686 km2
11 ac = 0.0445155 km2
12 ac = 0.0485624 km2
13 ac = 0.0526092 km2
14 ac = 0.0566561 km2
15 ac = 0.060703 km2
16 ac = 0.0647498 km2
17 ac = 0.0687967 km2
18 ac = 0.0728435 km2
19 ac = 0.0768904 km2
20 ac = 0.0809373 km2
100 ac = 0.404686 km2
1 000 ac = 4.04686 km2
10 000 ac = 40.4686 km2

Acres

An acre is a unit of area used in the imperial and US customary systems. It is defined as the area of one chain by one furlong (66 feet by 660 feet), which is exactly 10 square chains or 43 560 square feet. An acre is about 40% of a hectare (the SI unit of area). The symbol for acre is "ac". The word "acre" comes from Old English æcer, which means "field". The term was first used in the context of land measurement in the 14th century. In the United States, the acre is legally defined as an area of 43 560 square feet or 4 840 square yards. This definition was established by the international yard and pound agreement of 1959.

Square kilometers

A square kilometer (km²) is a unit of area. The symbol for square kilometers is "km²," where "km" represents kilometers and "²" denotes the unit of area squared.