How to Convert Celsius to Fahrenheit
Quickly convert a temperature from Celsius to Fahrenheit in your head
Updated January 29, 2009
Outdoor thermometer with a temperature reading of 22.2 degrees Celsius or 72 degrees Fahrenheit.
In the U.S., the base unit of measurement for temperature is Fahrenheit (° F). However, most other countries of the world have adopted the metric system, which uses the Celsius (° C) scale to measure temperature. For converting Celsius to Fahrenheit use this conversion formula: ° F = 9/5 × ( ° C) + 32.
- Take the temperature in Celsius and multiply it by 1.8
- Add 32 degrees
- The result is degrees Fahrenheit.
To make the conversion quickly in your head, round the numbers 1.8 up to 2 and 32 down to 30. For example:
- Take the temperature in Celsius and double it.
- Add 30 degrees
- The approximate result is degrees Fahrenheit.
This quick conversion calculation is not as accurate, but the approximation will give you a general idea of the temperature.
To find a precise conversion of Celsius to Fahrenheit using Google or Yahoo, type in the following as your search query: Convert 30 degrees Celsius to Fahrenheit
Remember to keep in mind that Water freezes at 0 degrees Celsius or 32 degrees Fahrenheit, and it boils at 100 degrees Celsius or 212 degrees Fahrenheit.