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# Acres to km² formula

Use the formula below to convert any value from acres to km²:

square kilometers = acres × 0.0040468564224

To from acres to square kilometer, you just need to multiply the value in acres by 0.0040468564224. (It is called the conversion factor)

## Using the formula (some examples):

Convert full acre to square kilometers:
an acre = 1 × 0.0040468564224 = 0.0040468564224 square kilometers.

Convert two acre to square kilometers:
dois acre = 2 × 0.0040468564224 = 0.0080937128448 square kilometers.

Convert five acres to square kilometers:
5 acres = 5 × 0.0040468564224 = 0.020234282112 square kilometers.

## More Examples:

Convert ten acres to square kilometers: 10 acres = 10 × 0.0040468564224 = 0.040468564224 square kilometers.

Convert twenty acres to square kilometers: 20 acres = 20 × 0.0040468564224 = 0.080937128448 square kilometers.

Convert fifty acres to square kilometers: 50 acres = 50 × 0.0040468564224 = 0.20234282112 square kilometers.

Convert a hundred acres to square kilometers: 100 acres = 100 × 0.0040468564224 = 0.40468564224 square kilometers.

Convert a thousand acres to square kilometers: 1000 acres = 1000 × 0.0040468564224 = 4.0468564224 square kilometers.

### All In One Unit Converter

Please, choose a physical quantity, two units, then type a value in any of the boxes above.