To find out how hot it is outside, you need to understand the Celsius and Fahrenheit scales. Celsius stands for degrees of heat, and Fahrenheit stands for degrees of cold. The American Heritage Dictionary defines ambient temperatures as 68 degrees Fahrenheit (20 degrees Celsius). The Oxford English Dictionary can help you convert these units.
Celsius is the most common thermometer measurement system. Fahrenheit is used in countries where temperature is measured in degrees. In the United States, 21 degrees Celsius equals 37.8 degrees Fahrenheit. How can Fahrenheit be converted to Celsius? Using fractions! This conversion is simple and straightforward!