21 Celsius to Fahrenheit
Celsius To Fahrenheit
Also known as Centigrade, Celcius is the unit of measuring temperature. On the scale, a temperature of 0 degrees is the melting point of water at sea level. The temperature of 100 degrees is where the water starts to boil. On the Fahrenheit scale, the freezing temperature of the water is 32 degrees, whereas the boiling temperature is 212 degrees. The formula to convert the temperature from Celcius to Fahrenheit is to subtract 32 to it and then multiply the result by 5/9 or .5556.