TEMPERATURE CONVERSION

General information

Fahrenheit:  Under standard conditions water boils at 212 deg. and freezes at 32 deg.

Celsius or Centigrade:   Water boils at 100 deg. and freezes as 0 deg.

Kelvin:  Water boils at 373.15 K and freezes at 273.15 K.

-40 degrees Celsius is the same as -40 degrees Fahrenheit *

* Thanks to Chris Johnson for pointing this out.

How to convert from Celsius to Fahrenheit and vice versa

To convert Celsius into Fahrenheit

Multiply by 9, divide by 5 and add 32.

To convert Fahrenheit into Celsius

Subtract 32, multiply by 5 and divide by 9

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Neal Bellard has kindly sent in an even easier way to convert these -

Why use 3 steps to convert degrees C to F and vice versa?

For Celsius to Fahrenheit

Multiply by 1.8 then add 32. 

For Fahrenheit to Celsius

Subtract 32 then divide by 1.8.

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Tip from W Cristo, Jr., M..D