Fahrenheit and Celsius (Centigrade) Scales

Below is information about the Celcius and Fahrenheit Scales, including the degrees for boiling and freezing, absolute zero, and the related Kelvin Scale.

°Celsius °Fahrenheit
–273.15–459.67
–250 –418
–200 –328
–150 –238
–100 –148
–50 –58
–40 –40
–30 –22
–20 –4
–10 14
0 32
5 41
10 50
15 59
20 68
25 77
30 86
35 95
40 104
45 113
50 122
55 131
60 140
65 149
70 158
75 167
80 176
85 185
90 194
95 203
100 212

Zero on the Fahrenheit scale represents the temperature produced by the mixing of equal weights of snow and common salt.

 °Fahrenheit °Celsius
Boiling point of water  212°  100°
Freezing point of water  32°   0°
Absolute zero –459.6° –273.1°

Absolute zero is theoretically the lowest possible temperature, the point at which all molecular motion would cease.

To convert Fahrenheit to Celsius (Centigrade), subtract 32 and divide by 1.8.

To convert Celsius (Centigrade) to Fahrenheit, multiply by 1.8 and add 32.

Kelvin Scale

Degrees Celsius (°C) and kelvins (K) have the same magnitude. The only difference between the scales is their starting points: 0 K is "absolute zero," while 0°C is the freezing point of water. One can convert degrees Celsius to kelvins by adding 273.15; thus, the boiling point of water, 100°C, is 373.15 K.


Measurement

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