SCALES
Fahrenheit
In the Fahrenheit scale of temperature the freezing point of water is 32 degrees and the boiling point is 212 degrees. The degree Fahrenheit (°F) is a unit of temperature named for the german physicist Gabriel Fahrenheit.

Celsius
In the Celsius scale of temperature the freezing point of water is 0 degrees and the boiling point is 100 degrees. The degree Celsius (°C) is a unit of temperature named for the Swedish astronomer Anders Celsius (1701-1744).
FORMULAS
Fahrenheit to Celsius:
  • Celsius = (5 ÷ 9) × (Fahrenheit - 32)
Celsius to Fahrenheit:
  • Fahrenheit = (9 ÷ 5) × Celsius + 32