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.
Fahrenheit to Celsius
- Subtract 32 from the Fahrenheit temperature.
- Divide by 1.8. An example:
- 74°F = (74 - 32) / 1.8 = 23°C
Celsius to Fahrenheit
- Multiply the Celsius temperature by 1.8.
- Add 32. An example:
- 30°C = (30 x 1.8) + 32 = 86°F
Celsius to Kelvin
- Add 273.15 to your Celsius temperature.
Kelvin to Celsius
- Subtract 273.15 from your Kelvin temperature.
Kelvin to Fahrenheit
- Multiply by 1.8.
- Subtract 459.7.
- 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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