# Convert Acres to Square Kilometers

## Learn How to Convert Acres to Square Kilometers Using our Conversion Formula

Converting an acre area measurement to a square kilometer measurement involves multiplying your area by the conversion ratio to find the result. An acre is equal to 0.004047 square kilometers, so to convert simply multiply by 0.004047.

For example, 5ac = (5 × 0.004047) = 0.020234sq km.

Use an acreage calculator to find the area of a plot of land in acres by locating the boundaries on a map.

Acres and square kilometers are both units used to measure area. Learn more about area and
find more area measurement conversion calculators.
An acre is an imperial measurement and can be abbreviated as *ac*, for example 1ac.
A square kilometer is a metric measurement and can be abbreviated as *sq km*, for example 1sq km.
Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

## More Area Conversions

- Convert to Square Miles Area
- 1ac is equal to 0.001562 square miles
- Convert to Square Yards Area
- 1ac is equal to 4,840 square yards
- Convert to Square Feet Area
- 1ac is equal to 43,560 square feet
- Convert to Square Inches Area
- 1ac is equal to 6,272,592 square inches
- Convert to Hectares Area
- 1ac is equal to 0.404683 hectares
- Convert to Ares Area
- 1ac is equal to 40.468253 ares
- Convert to Square Meters Area
- 1ac is equal to 4,047 square meters
- Convert to Square Centimeters Area
- 1ac is equal to 40,468,253 square centimeters
- Convert to Square Millimeters Area
- 1ac is equal to 4,046,825,252 square millimeters

## Acre Measurements and Equivalent Square Kilometer Conversions

Acres | Square Kilometers | Acres | Square Kilometers | Acres | Square Kilometers |
---|---|---|---|---|---|

1 | 0.004047 | 21 | 0.084983 | 41 | 0.16592 |

2 | 0.008094 | 22 | 0.08903 | 42 | 0.169967 |

3 | 0.01214 | 23 | 0.093077 | 43 | 0.174013 |

4 | 0.016187 | 24 | 0.097124 | 44 | 0.17806 |

5 | 0.020234 | 25 | 0.101171 | 45 | 0.182107 |

6 | 0.024281 | 26 | 0.105217 | 46 | 0.186154 |

7 | 0.028328 | 27 | 0.109264 | 47 | 0.190201 |

8 | 0.032375 | 28 | 0.113311 | 48 | 0.194248 |

9 | 0.036421 | 29 | 0.117358 | 49 | 0.198294 |

10 | 0.040468 | 30 | 0.121405 | 50 | 0.202341 |

11 | 0.044515 | 31 | 0.125452 | 51 | 0.206388 |

12 | 0.048562 | 32 | 0.129498 | 52 | 0.210435 |

13 | 0.052609 | 33 | 0.133545 | 53 | 0.214482 |

14 | 0.056656 | 34 | 0.137592 | 54 | 0.218529 |

15 | 0.060702 | 35 | 0.141639 | 55 | 0.222575 |

16 | 0.064749 | 36 | 0.145686 | 56 | 0.226622 |

17 | 0.068796 | 37 | 0.149733 | 57 | 0.230669 |

18 | 0.072843 | 38 | 0.153779 | 58 | 0.234716 |

19 | 0.07689 | 39 | 0.157826 | 59 | 0.238763 |

20 | 0.080937 | 40 | 0.161873 | 60 | 0.24281 |