If you HAVE the temp in Fahrenheit and you want to know
what it would be in Celsius, plug the Fahrenheit temp that
you have into this formula:
C = 5/9 (F - 32) .
If you HAVE the temp in Celsius and you want to know
what it would be in Fahrenheit, plug the Celsius temp
that you have into this formula:
F = 1.8 C + 32 .