# Convert Square Inches to Square Centimeters

Enter the area in square inches below to get the value converted to square centimeters.

**Results in Square Centimeters:**

## How to Convert Square Inches to Square Centimeters

To convert a square inch measurement to a square centimeter measurement, multiply the area by the conversion ratio. One square inch is equal to 6.4516 square centimeters, so use this simple formula to convert:

The area in square centimeters is equal to the square inches multiplied by 6.4516.

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

Square inches and square centimeters are both units used to measure area. Keep reading to learn more about each unit of measure.

## Square Inches

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

The square inch is a US customary and imperial unit of area. A square inch is sometimes also referred to as a square in. Square inches can be abbreviated as *sq in*, and are also sometimes abbreviated as *in²*. For example, 1 square inch can be written as 1 sq in or 1 in².

## Square Centimeters

One square centimeter is equal to the area of a square with 1 centimeter long sides.

The square centimeter, or square centimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "centi" is the prefix for 10^{-2}. A square centimeter is sometimes also referred to as a square cm. Square centimeters can be abbreviated as *sq cm*, and are also sometimes abbreviated as *cm²*. For example, 1 square centimeter can be written as 1 sq cm or 1 cm².

## Square Inch Measurements and Equivalent Square Centimeter Conversions

Square Inches | Square Centimeters |
---|---|

1 sq in | 6.4516 sq cm |

2 sq in | 12.9 sq cm |

3 sq in | 19.35 sq cm |

4 sq in | 25.81 sq cm |

5 sq in | 32.26 sq cm |

6 sq in | 38.71 sq cm |

7 sq in | 45.16 sq cm |

8 sq in | 51.61 sq cm |

9 sq in | 58.06 sq cm |

10 sq in | 64.52 sq cm |

11 sq in | 70.97 sq cm |

12 sq in | 77.42 sq cm |

13 sq in | 83.87 sq cm |

14 sq in | 90.32 sq cm |

15 sq in | 96.77 sq cm |

16 sq in | 103.23 sq cm |

17 sq in | 109.68 sq cm |

18 sq in | 116.13 sq cm |

19 sq in | 122.58 sq cm |

20 sq in | 129.03 sq cm |

21 sq in | 135.48 sq cm |

22 sq in | 141.94 sq cm |

23 sq in | 148.39 sq cm |

24 sq in | 154.84 sq cm |

25 sq in | 161.29 sq cm |

26 sq in | 167.74 sq cm |

27 sq in | 174.19 sq cm |

28 sq in | 180.64 sq cm |

29 sq in | 187.1 sq cm |

30 sq in | 193.55 sq cm |

31 sq in | 200 sq cm |

32 sq in | 206.45 sq cm |

33 sq in | 212.9 sq cm |

34 sq in | 219.35 sq cm |

35 sq in | 225.81 sq cm |

36 sq in | 232.26 sq cm |

37 sq in | 238.71 sq cm |

38 sq in | 245.16 sq cm |

39 sq in | 251.61 sq cm |

40 sq in | 258.06 sq cm |

## More Square Inch Area Conversions

**US Customary**

- Convert to Square Miles
- 1 sq in is equal to 2.491E-10 square miles
- Convert to Acres
- 1 sq in is equal to 1.5942E-7 acres
- Convert to Square Yards
- 1 sq in is equal to 0.000772 square yards
- Convert to Square Feet
- 1 sq in is equal to 0.006944 square feet

**SI Units**

- Convert to Square Kilometers
- 1 sq in is equal to 6.4516E-10 square kilometers
- Convert to Square Meters
- 1 sq in is equal to 0.000645 square meters
- Convert to Square Millimeters
- 1 sq in is equal to 645.16 square millimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq in is equal to 6.4516E-8 hectares
- Convert to Ares
- 1 sq in is equal to 6.4516E-6 ares