The Fahrenheit scale, introduced by Daniel Gabriel Fahrenheit in 1724, is one of the unique temperature scales where the freezing point of water is set to 32 degrees, and the boiling point is at 212 degrees under standard atmospheric pressure. This scale is still predominantly used in the United States, the Bahamas, and a few other territories for everyday temperature measurements. Interestingly, Fahrenheit selected these fixed points based on the coldest temperature he could achieve using a saltwater mixture and the average human body temperature.
The Fahrenheit scale was ingeniously designed to provide finer granularity compared to the Celsius scale, making it useful for meteorology and cooking. It’s a common misconception that this scale lacks scientific relevance; however, it offers precision in everyday life that Celsius, with its larger one-degree steps, sometimes cannot match.
The Kelvin scale, an absolute temperature scale, is named after the renowned physicist Lord Kelvin, who introduced it in 1848. Unlike Celsius or Fahrenheit, Kelvin starts at absolute zero, the theoretical point where atomic motion stops entirely. This makes it incredibly useful in scientific settings because it allows for a more straightforward understanding of thermal phenomena without negative numbers complicating calculations.
One fascinating fact about Kelvin is its connection to the cosmic microwave background radiation, the afterglow of the Big Bang. This radiation has a temperature of about 2.725 Kelvin, providing a glimpse into the universe just 380,000 years after its inception. Furthermore, Kelvin is crucial for describing phenomena like superconductivity and Bose-Einstein Condensates, which occur close to absolute zero, sparking innovations in technology and materials science.
Degrees Fahrenheit | Kelvins |
---|---|
-100
°F
|
199.81667
K
|
-95
°F
|
202.59444
K
|
-90
°F
|
205.37222
K
|
-85
°F
|
208.15
K
|
-80
°F
|
210.92778
K
|
-75
°F
|
213.70556
K
|
-70
°F
|
216.48333
K
|
-65
°F
|
219.26111
K
|
-60
°F
|
222.03889
K
|
-55
°F
|
224.81667
K
|
-50
°F
|
227.59444
K
|
-45
°F
|
230.37222
K
|
-40
°F
|
233.15
K
|
-35
°F
|
235.92778
K
|
-30
°F
|
238.70556
K
|
-25
°F
|
241.48333
K
|
-20
°F
|
244.26111
K
|
-15
°F
|
247.03889
K
|
-10
°F
|
249.81667
K
|
-5
°F
|
252.59444
K
|
0
°F
|
255.37222
K
|
5
°F
|
258.15
K
|
10
°F
|
260.92778
K
|
15
°F
|
263.70556
K
|
20
°F
|
266.48333
K
|
25
°F
|
269.26111
K
|
30
°F
|
272.03889
K
|
35
°F
|
274.81667
K
|
40
°F
|
277.59444
K
|
45
°F
|
280.37222
K
|
50
°F
|
283.15
K
|
55
°F
|
285.92778
K
|
60
°F
|
288.70556
K
|
65
°F
|
291.48333
K
|
70
°F
|
294.26111
K
|
75
°F
|
297.03889
K
|
80
°F
|
299.81667
K
|
85
°F
|
302.59444
K
|
90
°F
|
305.37222
K
|
95
°F
|
308.15
K
|
100
°F
|
310.92778
K
|
105
°F
|
313.70556
K
|
110
°F
|
316.48333
K
|
115
°F
|
319.26111
K
|
120
°F
|
322.03889
K
|
125
°F
|
324.81667
K
|
130
°F
|
327.59444
K
|
135
°F
|
330.37222
K
|
140
°F
|
333.15
K
|
145
°F
|
335.92778
K
|
150
°F
|
338.70556
K
|
155
°F
|
341.48333
K
|
160
°F
|
344.26111
K
|
165
°F
|
347.03889
K
|
170
°F
|
349.81667
K
|
175
°F
|
352.59444
K
|
180
°F
|
355.37222
K
|
185
°F
|
358.15
K
|
190
°F
|
360.92778
K
|
195
°F
|
363.70556
K
|
200
°F
|
366.48333
K
|
205
°F
|
369.26111
K
|
210
°F
|
372.03889
K
|
215
°F
|
374.81667
K
|
220
°F
|
377.59444
K
|
225
°F
|
380.37222
K
|
230
°F
|
383.15
K
|
235
°F
|
385.92778
K
|
240
°F
|
388.70556
K
|
245
°F
|
391.48333
K
|
250
°F
|
394.26111
K
|
255
°F
|
397.03889
K
|
260
°F
|
399.81667
K
|
265
°F
|
402.59444
K
|
270
°F
|
405.37222
K
|
275
°F
|
408.15
K
|
280
°F
|
410.92778
K
|
285
°F
|
413.70556
K
|
290
°F
|
416.48333
K
|
295
°F
|
419.26111
K
|
300
°F
|
422.03889
K
|
Conversion | Call to Action |
---|---|
Fahrenheit to Degrees Celsius | Go to converter |
Fahrenheit to Degrees Rankine | Go to converter |
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