Temperature Conversion:

About Fahrenheit and Celsius F-C

The Fahrenheit temperature scale is named for German physicist Daniel Gabriel Fahrenheit, and is used primarily in the United States.

The Celsius temperature scale — originally centigrade and later renamed, for Swedish astronomer Anders Celsius — is used almost everywhere else in the world.

To convert temperatures in degrees Fahrenheit to Celsius, subtract 32 and multiply by .5556 (or 5/9).

• Example: (50°F - 32) x .5556 = 10°C

Fahrenheit	Celsius
-40°F	-40°C
-30°F	-34°C
-20°F	-29°C
-10°F	-23°C
0°F	-18°C
10°F	-12°C
20°F	-7°C
32°F	0°C
40°F	4°C
50°F	10°C
60°F	16°C
70°F	21°C
80°F	27°C
90°F	32°C
100°F	38°C

Celsius to Fahrenheit Formula

To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.

• Example: 30°C x 1.8 + 32 = 86°F

Celsius	Fahrenheit
-40°C	-40°F
-30°C	-22°F
-20°C	-4°F
-10°C	14°F
0°C	32°F
10°C	50°F
20°C	68°F
30°C	86°F
40°C	104°F
50°C	122°F
60°C	140°F
70°C	158°F
80°C	176°F
90°C	194°F
100°C	212°F