# quick, help! far. ---\> celsius conversion?

**URL:** <https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990>\
**Category:** Factual Questions\
**Created:** [January 6, 2003, 7:38pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990 "2003-01-06T19:38:13Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![superfreakicus](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@superfreakicus](https://boards.straightdope.com/u/superfreakicus)\
**Post date:** [January 6, 2003, 7:38pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990/1 "2003-01-06T19:38:13Z")

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?

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**Author:** ![Gary\_T](https://avatars.discourse-cdn.com/v4/letter/g/3ec8ea/32.png) [@Gary\_T](https://boards.straightdope.com/u/Gary_T)\
**Post date:** [January 6, 2003, 7:42pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990/2 "2003-01-06T19:42:11Z")

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F to C: +40, x5/9, -40

C to F: +40, x9/5, -40

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**Author:** ![Waverly](https://avatars.discourse-cdn.com/v4/letter/w/57b2e6/32.png) [@Waverly](https://boards.straightdope.com/u/Waverly)\
**Post date:** [January 6, 2003, 7:44pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990/3 "2003-01-06T19:44:26Z")

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Dec. 2002 is not proving to be a good vintage.

Try [www.onlineconversion.com](http://www.onlineconversion.com)

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**Author:** ![mnemosyne](https://avatars.discourse-cdn.com/v4/letter/m/c4cdca/32.png) [@mnemosyne](https://boards.straightdope.com/u/mnemosyne)\
**Post date:** [January 6, 2003, 7:56pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990/4 "2003-01-06T19:56:45Z")

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[www.google.com](http://www.google.com), search for “celsius fahrenheit conversion” gives in the caption of the fourth hit:

> [@](#):
>
> To convert a Fahrenheit temperature into Celsius: Tc = (5/9)\*(Tf-32).

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**Author:** ![superfreakicus](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@superfreakicus](https://boards.straightdope.com/u/superfreakicus)\
**Post date:** [January 6, 2003, 7:58pm UTC](https://boards.straightdope.com/t/quick-help-far-celsius-conversion/146990/5 "2003-01-06T19:58:25Z")

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hehehe…thanks for the help — I know it wasn’t much of a challenge, but I had the window open while I was chatting w/someone.