| Conversion Table
  
    | °C 
      to °F Conversion Table: |  
    | -30 °C= -22 °F-20 = -4
 -10 = 14
 0 = 32
 10 = 50
 20 = 68
 30 = 86
 | 40 °C = 104 °F 50 = 122
 60 = 140
 70 = 158
 80 = 176
 90 = 194
 100 = 212
 |  
  
    | °F 
      to °C Conversion Table: |  
    | -30 °F = -34.444 °C -20 = -28.889
 -10 = -23.333
 0 = -17.778
 10 = -12.222
 20 = -6.667
 30 = -1.111
 | 40 °F = 4.444 °C 50 = 10
 60 =15.556
 70 = 21.111
 80 = 26.667
 90 = 32.222
 100 = 37.778
 |    Fahrenheit is a temperature 
              scale named after the physicist Daniel Gabriel Fahrenheit who proposed 
              it in year 1724. In this scale, the freezing point of water is 32 
              degrees Fahrenheit (32 °F), and the boiling 
              point of water is 212 degrees Fahrenheit, setting the boiling and 
              freezing points of water 180 degrees apart. On the Celsius 
              measurement scale, the freezing and boiling points of water are 
              precisely 100 degrees apart, the unit of this scale a degree Fahrenheit 
              is 5/9 of a degree Celsius. Negative - 40 degrees Fahrenheit 
              (-40 °F) is equal to negative - 40 degrees Celsius 
              (-40 °C). |