There are primarily two temperature scales used in the world: the Fahrenheit scale (used in USA) and the Celsius scale (the Metric System, used in almost all other countries)

Both are worth to measure the same (temperature!), Just with different numbers.

If you freeze water, the Celsius scale 0 mark, but the mark 32 Fahrenheit. If you boil water, the scale reads 100 Celsius, but 212 Fahrenheit mark. The difference between freezing and boiling water is 100 degrees Celsius, but 180 Fahrenheit.

##              Convertion                     Formula
## 1 Celsius to Fahrenheit   (F - 32 ) x 1.8 = Celsius
## 2 Fahrenheit to Celsius (c x 1.8) + 32 = Fahrenheit

##   Celcius Fahrenheit
## 1     100      212.0
## 2      40      104.0
## 3      37       98.4
## 4      30       86.0
## 5      21       70.0
## 6      10       50.0
## 7       0       32.0
## 8     -10        0.0
## 9     -40      -40.0

##     Celcius        Fahrenheit   
##  Min.   :-40.0   Min.   :-40.0  
##  1st Qu.:  0.0   1st Qu.: 32.0  
##  Median : 21.0   Median : 70.0  
##  Mean   : 20.9   Mean   : 68.0  
##  3rd Qu.: 37.0   3rd Qu.: 98.4  
##  Max.   :100.0   Max.   :212.0