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How to Convert Celsius to Fahrenheit

The formula for converting temperature from degrees Celsius to Fahrenheit may seem intimidating. But you can easily do this conversion in your head using the following trick.


  • Step 1: Multiply by 2 Multiply the temperature in Celsius by two. Write this number down.
  • Step 2: Multiply by one-fifth Multiply the temperature in celsius by one-fifth.
  • Step 3: Subtract Subtract the result of step 2 from the number you got at the end of step 1.
  • TIP: The equation for the conversion can be written as F = 2C – 0.2C + 32
  • Step 4: Add 32 Add 32. The result is the temperature in degrees Fahrenheit.
  • FACT: Daniel Fahrenheit and Anders Celsius were contemporary 18th-century scientists.

You Will Need

  • A Celsius temperature
  • A calculator (optional)

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