Fahrenheit to Celsius conversion formula

The formula below shows how temperatures on the Fahrenheit scale relates to the Celsius scale.

Tc = (5/9)*(Tf-32)
Tc = temperature in degrees Celsius
Tf = temperature in degrees Fahrenheit

For example, suppose you have a Fahrenheit temperature of 98.6 degrees and you wanted to convert it into degrees Celsius. Using the above formula, you would first subtract 32 from the Fahrenheit temperature and get 66.6. Then you multiply 66.6 by five-ninths and get 37 degrees Celsius.

The formula to convert a Celsius temperature into degrees Fahrenheit is:

Tf = (9/5)*Tc+32
Tc = temperature in degrees Celsius
Tf = temperature in degrees Fahrenheit

For example, suppose you have a Celsius temperature of 100 degrees and you want to convert it into degrees Fahrenheit. Using the above formula, you first multiply the Celsius temperature reading by nine-fifths and get 180. Then you add 32 to 180 and get 212 degrees Fahrenheit.

How can you convert Fahrenheit to Celsius using DeadLine Calculator?

Define the function:
f2c:(5/9)*(x-32)

Then make the conversion:
f2c(98.6)

The result will be 37 degrees Celsius.

To convert Celsius to Fahrenheit, define another function:

c2f:(9/5)*x+32

c2f(100)
will display 212 degrees Fahrenheit.