Jan 12, 2013

How to of the Day: How to Convert Between Fahrenheit and Celsius

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How to Convert Between Fahrenheit and Celsius
Jan 13th 2013, 02:00

Want to know how to do rapid temperature conversions? This article sets out a shortcut to convert Fahrenheit to Celsius and vice versa. Also, this article can show you how to convert Celsius to Kelvin temperature, and Kelvin to Fahrenheit.

Edit Steps

Fahrenheit to Celsius

  1. Subtract 32 from the Fahrenheit temperature.
  2. Divide by 1.8. An example:
    • 74°F = (74 - 32) / 1.8 = 23°C

Celsius to Fahrenheit

  1. Multiply the Celsius temperature by 1.8.
  2. Add 32. An example:
    • 30°C = (30 x 1.8) + 32 = 86°F

Celsius to Kelvin

  1. Add 273.15 to your Celsius temperature.

Kelvin to Celsius

  1. Subtract 273.15 from your Kelvin temperature.

Kelvin to Fahrenheit

  1. Multiply by 1.8.
  2. Subtract 459.7.

Edit Video

Edit Tips

  • You can also use the formula C = 5/9(F - 32) to convert Fahrenheit to Celsius, and 5/9C = F - 32 to convert Celsius to Fahrenheit.
  • Here are some key conversion numbers worth remembering:
    • Water freezes at 0°C or 32°F.
    • Body temperature is typically 37°C or 98.6°F.
    • Water boils at 100°C or 212°F.
    • At -40, both temperatures are equal.
  • Remember that Kelvin is always 273.15° more than Celsius.
  • When targeting an international audience do not use the words 'centigrade' or 'celsium'. Use 'degrees Celsius' instead.

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200px-Celsius-to-Fahrenheit-Intro.jpg (image/jpeg)
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