Fahrenheit-Celsius Converter

  
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Three ways to convert from Fahrenheit to Celsius:
  • Subtract 32, divide by 9, and multiply by 5.
  • Subtract 32, divide by 3, multiply by 5, then divide by 3.
  • Subtract 32, divide by 3, multiply by 10, then divide by 6.
So, converting 212°F using the second formula: 212-32=180, 180/3=60, 60x5=300, 300/3=100°C
Four ways to convert from Celsius to Fahrenheit:
  • Divide by 5, multiply by 9, and add 32.
  • Multiply by 18, divide by 10, and add 32.
  • Multiply by 10, subtract original temperature, divide by 5, and add 32.
  • Multiply by 10, subtract original temperature, double it, divide by 10, and add 32.
So, converting 5°C using the second formula: 5x18=90, 90/10=9, 9+32=41°F
To convert from Fahrenheit to Kelvin (absolute):
  • Add 459.67, divide by 9, then multiply by 5
To convert from Kelvin (absolute) to Fahrenheit:
  • Multiply by 5, divide by 9, then subtract 459.67

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