# Convert Square Millimeters to Acres

Enter the area in square millimeters below to get the value converted to acres.

**Results in Acres:**

## How to Convert Square Millimeters to Acres

To convert a square millimeter measurement to a acre measurement, multiply the area by the conversion ratio. One square millimeter is equal to 2.4711E-10 acres, so use this simple formula to convert:

The area in acres is equal to the square millimeters multiplied by 2.4711E-10.

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

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

## Square Millimeters

One square millimeter is equal to the area of a square with edges that are 1 millimeter in length.

The square millimeter, or square millimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "milli" is the prefix for 10^{-3}. A square millimeter is sometimes also referred to as a square mm. Square millimeters can be abbreviated as *sq mm*, and are also sometimes abbreviated as *mm²*. For example, 1 square millimeter can be written as 1 sq mm or 1 mm².

## 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. 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.

## Square Millimeter Measurements and Equivalent Acre Conversions

Square Millimeters | Acres |
---|---|

1 sq mm | 0.00000000024711 ac |

2 sq mm | 0.00000000049421 ac |

3 sq mm | 0.00000000074132 ac |

4 sq mm | 0.00000000098842 ac |

5 sq mm | 0.0000000012355 ac |

6 sq mm | 0.0000000014826 ac |

7 sq mm | 0.0000000017297 ac |

8 sq mm | 0.0000000019768 ac |

9 sq mm | 0.0000000022239 ac |

10 sq mm | 0.0000000024711 ac |

11 sq mm | 0.0000000027182 ac |

12 sq mm | 0.0000000029653 ac |

13 sq mm | 0.0000000032124 ac |

14 sq mm | 0.0000000034595 ac |

15 sq mm | 0.0000000037066 ac |

16 sq mm | 0.0000000039537 ac |

17 sq mm | 0.0000000042008 ac |

18 sq mm | 0.0000000044479 ac |

19 sq mm | 0.000000004695 ac |

20 sq mm | 0.0000000049421 ac |

21 sq mm | 0.0000000051892 ac |

22 sq mm | 0.0000000054363 ac |

23 sq mm | 0.0000000056834 ac |

24 sq mm | 0.0000000059305 ac |

25 sq mm | 0.0000000061776 ac |

26 sq mm | 0.0000000064247 ac |

27 sq mm | 0.0000000066718 ac |

28 sq mm | 0.000000006919 ac |

29 sq mm | 0.0000000071661 ac |

30 sq mm | 0.0000000074132 ac |

31 sq mm | 0.0000000076603 ac |

32 sq mm | 0.0000000079074 ac |

33 sq mm | 0.0000000081545 ac |

34 sq mm | 0.0000000084016 ac |

35 sq mm | 0.0000000086487 ac |

36 sq mm | 0.0000000088958 ac |

37 sq mm | 0.0000000091429 ac |

38 sq mm | 0.00000000939 ac |

39 sq mm | 0.0000000096371 ac |

40 sq mm | 0.0000000098842 ac |

## More Square Millimeter Area Conversions

**US Customary**

- Convert to Square Miles
- 1 sq mm is equal to 3.861E-13 square miles
- Convert to Square Yards
- 1 sq mm is equal to 1.196E-6 square yards
- Convert to Square Feet
- 1 sq mm is equal to 1.0764E-5 square feet
- Convert to Square Inches
- 1 sq mm is equal to 0.00155 square inches

**SI Units**

- Convert to Square Kilometers
- 1 sq mm is equal to 1.0E-12 square kilometers
- Convert to Square Meters
- 1 sq mm is equal to 1.0E-6 square meters
- Convert to Square Centimeters
- 1 sq mm is equal to 0.01 square centimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq mm is equal to 1.0E-10 hectares
- Convert to Ares
- 1 sq mm is equal to 1.0E-8 ares