# Fahrenheit and Celsius (Centigrade) Scales

Below is information about the Celcius and Fahrenheit Scales, including the degrees for boiling and freezing, absolute zero, and the related Kelvin Scale.

°Celsius | °Fahrenheit |
---|

–273.15 | –459.67 |

–250 | –418 |

–200 | –328 |

–150 | –238 |

–100 | –148 |

–50 | –58 |

–40 | –40 |

–30 | –22 |

–20 | –4 |

–10 | 14 |

0 | 32 |

5 | 41 |

10 | 50 |

15 | 59 |

20 | 68 |

25 | 77 |

30 | 86 |

35 | 95 |

40 | 104 |

45 | 113 |

50 | 122 |

55 | 131 |

60 | 140 |

65 | 149 |

70 | 158 |

75 | 167 |

80 | 176 |

85 | 185 |

90 | 194 |

95 | 203 |

100 | 212 |

Zero on the Fahrenheit scale represents the temperature produced by the mixing of equal weights of snow and common salt.

| °Fahrenheit | °Celsius |
---|

Boiling point of water | 212° | 100° |

Freezing point of water | 32° | 0° |

Absolute zero | –459.6° | –273.1° |

Absolute zero is theoretically the lowest possible temperature, the point at which all molecular motion would cease.

To convert Fahrenheit to Celsius (Centigrade), subtract 32 and divide by 1.8.

To convert Celsius (Centigrade) to Fahrenheit, multiply by 1.8 and add 32.

#### Kelvin Scale

Degrees Celsius (°C) and kelvins (K) have the same magnitude. The only difference between the scales is their starting points: 0 K is "absolute zero," while 0°C is the freezing point of water. One can convert degrees Celsius to kelvins by adding 273.15; thus, the boiling point of water, 100°C, is 373.15 K.

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