1. To convert from Fahrenheit to Celsius, use the following equation:
Tc = (TF - 32) x 5/9
To convert Celsius to Fahrenheit, use the following equation:
TF = Tc x 9/5 + 32

2. Tc = (TF - 32) x 5/9 = (50-32) x 5/9 = 18 x 5/9 = 10 oC Example #1
Convert 50 oF into oC
Tc = (TF - 32) x 5/9
= (50-32) x 5/9
= 18 x 5/9
= 10 oC

3. TF = Tc x 9/5 + 32 = 20 x 9/5 +32 = 68 oF Example #2
Convert 20 oC into oF
TF = Tc x 9/5 + 32
= 20 x 9/5 +32
= 68 oF

4. Kelvin
Unit of temperature used to measure absolute zero (when all molecule movement stops)
Since absolute zero occurs at -273 oC or 0 Kelvin….
0 oC = 273 K

5. Kelvin
Tc = TK - 273
TK = Tc + 273

6. Example #3
How many degrees Celsius in 575 K?