# 12.18 inches in centimeters

How to convert 12.18 inches to centimeters? The answer is 30.9 cm. Online converter.

## the answer:

**30.9 cm**

Precise value: 30.9372 cm.

## How to convert inches to centimeters?

To convert inches to centimeters, simply multiply the length in inches by 2.54. For example, a length of 10 inches is equal to 25.4 cm.

## How many centimeters in 1 inch?

In 1 inch, there are 2.54 cm.

## How many centimeters in 1/2 inch?

In 1/2 inch, there are 1.27 cm.

## Inches to cm in TV screen diagonal

Modern TVs and monitors are labeled with the size in inches for the diagonal of the screen. Below is a table of standard screen sizes in inches and centimeters

Diagonal, inches | Diagonal, cm | Width | Height |
---|---|---|---|

32 | 81.3 | 70.84 | 39.85 |

40 | 101.6 | 88.55 | 49.81 |

43 | 109.2 | 95.19 | 53.55 |

50 | 127 | 110.69 | 62.26 |

55 | 139.7 | 121.76 | 68.49 |

65 | 165.1 | 143.90 | 80.94 |

75 | 190.5 | 166.04 | 93.39 |

77 | 195.6 | 170.46 | 95.89 |

80 | 203.2 | 177.10 | 99.62 |

82 | 208.3 | 181.53 | 102.11 |

86 | 218.4 | 190.39 | 107.09 |

90 | 228.6 | 199.24 | 112.07 |

98 | 248.9 | 216.95 | 122.04 |

## Inches to cm in pipe threading

Another common application of inch labeling is in pipe threading. Inch threading is described by the British Standard Whitworth (BSW), invented by English engineer Joseph Whitworth in 1841, later forming the basis for the modern British Standard Pipe (BSP) international standard. The table presents some inch sizes from the standard:

Обозначение | Диаметр в дюймах | Внешний диаметр в мм | Внутренний диаметр в мм | Диаметр резьбы в мм | Шагов на дюйм |

G 1/8" | 1/8 | 9,73 | 8,85 | 8,80 | 28 |

G 1/4" | 1/4 | 13,16 | 11,89 | 11,80 | 19 |

G 3/8" | 3/8 | 16,66 | 15,39 | 15,25 | 19 |

G 1/2" | 1/2 | 20,95 | 19,17 | 19,00 | 14 |

G 5/8" | 5/8 | 22,91 | 21,13 | 21,00 | 14 |

G 3/4" | 3/4 | 26,44 | 24,66 | 24,50 | 14 |

G 7/8" | 7/8 | 30,20 | 28,42 | 28,25 | 14 |

G 1" | 1 | 33,25 | 30,93 | 30,75 | 11 |

G 1 1/8" | 1 1/8 | 37,90 | 35,58 | 35,30 | 11 |

G 1 1/4" | 1 1/4 | 41,91 | 35,59 | 39,25 | 11 |

G 1 3/8" | 1 3/8 | 44,32 | 42,00 | 41,70 | 11 |

G 1 1/2" | 1 1/2 | 47,80 | 45,48 | 45,25 | 11 |

G 2" | 2 | 59,61 | 57,29 | 57,00 | 11 |

G 2 1/4" | 2 1/4 | 65,71 | 63,39 | 63,10 | 11 |

G 2 1/2" | 2 1/2 | 75,18 | 72,86 | 72,60 | 11 |

G 2 3/4" | 2 3/4 | 81,53 | 79,21 | 78,90 | 11 |

G 3" | 3 | 87,88 | 85,56 | 85,30 | 11 |

G 3 1/4" | 3 1/4 | 93,98 | 91,66 | 91,50 | 11 |

G 3 1/2" | 3 1/2 | 100,33 | 98,01 | 97,70 | 11 |

G 3 3/4" | 3 3/4 | 106,68 | 104,3 | 104,00 | 11 |

G 4" | 4 | 113,03 | 110,71 | 110,40 | 11 |