Temperature conversion

Temperature conversions between the three temperature scales:

kelvin / degree Celsius conversions (exact):

kelvins = degrees Celsius + 273.15
degrees Celsius = kelvins - 273.15


degree Fahrenheit / degree Celsius conversions (exact):

degrees F = (degrees C x 9/5)+ 32
degrees C = (degrees F - 32) x 5/9

or
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http://chemistry.about.com/library/weekly/bltempconvert.htm