# Hectares to Acres Conversion

Enter the area in hectares below to get the value converted to acres.

**Results in Acres:**

## How to Convert Hectares to Acres

The fastest way to convert hectares to acres is to use this simple formula:

The area in acres is equal to the area in hectares multiplied by 2.471054.
Since one acre is equal to 2.471054 hectares^{[1]}, that's the conversion ratio used in the formula.

**For example,** here's how to convert 5 hectares to acres using the formula above.

5 ha = (5 × 2.471054) = 12.355269 ac

Hectares and acres are both units used to measure area. Keep reading to learn more about each unit of measure.

## Hectares

One hectare is equal to 10,000 square meters,^{[2]} or the area of a square with 100 meter sides.

The hectare is an SI accepted unit for area for use with the metric system. In the metric system, "hecto" is the prefix for 10^{2}. Hectares can be abbreviated as *ha*; for example, 1 hectare can be written as 1 ha.

## Acres

One acre is defined as the area equal to a space that is one chain (66 ft) by one furlong (660 ft), or 10 square chains.^{[3]} That's equal to 43,560 square feet for those unfamiliar with those units of measure.

The acre is a US customary and imperial unit of area. Acres can be abbreviated as *ac*; for example, 1 acre can be written as 1 ac.

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

## Hectare to Acre Conversion Table

Hectares | Acres |
---|---|

1 ha | 2.4711 ac |

2 ha | 4.9421 ac |

3 ha | 7.4132 ac |

4 ha | 9.8842 ac |

5 ha | 12.36 ac |

6 ha | 14.83 ac |

7 ha | 17.3 ac |

8 ha | 19.77 ac |

9 ha | 22.24 ac |

10 ha | 24.71 ac |

11 ha | 27.18 ac |

12 ha | 29.65 ac |

13 ha | 32.12 ac |

14 ha | 34.59 ac |

15 ha | 37.07 ac |

16 ha | 39.54 ac |

17 ha | 42.01 ac |

18 ha | 44.48 ac |

19 ha | 46.95 ac |

20 ha | 49.42 ac |

21 ha | 51.89 ac |

22 ha | 54.36 ac |

23 ha | 56.83 ac |

24 ha | 59.31 ac |

25 ha | 61.78 ac |

26 ha | 64.25 ac |

27 ha | 66.72 ac |

28 ha | 69.19 ac |

29 ha | 71.66 ac |

30 ha | 74.13 ac |

31 ha | 76.6 ac |

32 ha | 79.07 ac |

33 ha | 81.54 ac |

34 ha | 84.02 ac |

35 ha | 86.49 ac |

36 ha | 88.96 ac |

37 ha | 91.43 ac |

38 ha | 93.9 ac |

39 ha | 96.37 ac |

40 ha | 98.84 ac |

## References

- National Oceanic and Atmospheric Administration, U.S. Coast Pilot 6, General Information, https://nauticalcharts.noaa.gov/publications/coast-pilot/files/cp6/CPB6_C01_WEB.pdf
- Cambridge Dictionary, hectare, https://dictionary.cambridge.org/us/dictionary/english/hectare
- National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf