The three scales are fahrenheit, celsius, and kelvin.
Fahrenheit Celsius Fahrenheit (F)F(F - 32) * 5/9
Celsius (C or o)(C * 9/5) + 32C
Kelvin (K)(K - 273.15) * 9/5 + 32K - 273.15
One degree Celsius is a bigger unit of measurement than one degree Fahrenheit. One degree C equals 1.8 degrees F.
Normal body temp is 98.6 F, which converts to 37 C. If your temp increased 2 degrees F, it would be 100.6, which is a fairly mild fever. An increase of 2 degrees C is 39, or 102.2 F. Obviously, 102.2 is a higher fever than 100.6.