Converting Temperature Scales
Fahrenheit is a measurement of temperature and is probably the temperature scale that you are most
familiar with, if you live in the United States.
Celsius is another measurement of temperature commonly used for scientific work as well as for everyday uses worldwide. The Celsius scale is also called the Centigrade scale because it was designed in such
a way that there are 100 units or degrees between the freezing point and boiling point of water.
water boils
body temperature
water freezes
Fahrenheit Celsius
212
98.6
32
100
37
0
There will be times when you need to be able to convert a temperature from one scale to another. In real
life, you might be in a country where temperature is reported in Celsius and you will want to convert that
into Fahrenheit, in order to figure out if you need to wear a sweater.
Here’s the formula:
Convert Celsius to Fahrenheit:
Multiply by 9
Divide the answer by 5
Add 32
Convert Fahrenheit to Celsius:
Subtract 32
Multiply by 5
Divide by 9.
Example:
Convert 40 degrees Celsius to Fahrenheit
40 x 9 = 360 ÷ 5 = 72 + 32 = 104
Convert 77 degrees Fahrenheit to Celsius
77 – 32 = 45 X 5 = 225 ÷ 9 = 25
Try a few yourself!
4. 30
5. 15
6. 5
86 degrees Fahrenheit = _____ degrees Celsius
59 degrees Fahrenheit = _____ degrees Celsius
41 degrees Fahrenheit = _____ degrees Celsius
3. 122
4.
5.
6.
2. 68
35 degrees Celsius = _____ degrees Fahrenheit
20 degrees Celsius = _____ degrees Fahrenheit
50 degrees Celsius = _____ degrees Fahrenheit
1. 95
1.
2.
3.