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[–] 5 points 3 years ago*

I regularly convert between the two just by remembering the conversions for 10, 20, 30, and 40. It's actually pretty easy.

  • 0C is 32F (of course)
  • 10C is 50F
  • 20C is 68F (a cool room temp)
  • 30C is 86F (reciprocal of 20)
  • 40C is 104F

If you ever forget what one of them is, then just add 18F for every 10C from the last one you remember.

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