Convert temperatures

Kelvin (K) to Fahrenheit (°F)

Temperatures ﹣ Converter Kelvin to Fahrenheit

Here you can convert the Temperature Unit Kelvin into the unit Fahrenheit and vice versa you can convert Fahrenheit into Kelvin. By clicking the "Swap units" icon, you will always obtain the desired conversion in the calculation result, i.e., K to °F or °F to K. With the following calculator you can also calculate any other Temperature Unit.

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Info about "Kelvin"

The common unit for temperature in German-speaking countries is measured in degree Celsius (°C). Anders Celsius, a Swedish astronomer, mathematician and physicist, defined this temperature division named after him, degree Celsius, in the 18th century.

He chose the melting point and boiling point of water as fixed points for the temperature scale and divided the change in volume of mercury between these points into 100 equal parts. So today we are used to water freezing at 0 degree Celsius and water boiling at 100 degrees Celsius. And to measure the temperature, mercury­ thermo­meters are often still in use.

Celsius thus forms a so-called empirical temperature scale, i.e., an arbitrary determination of the magnitude of the temperature by indicating the temperature in relation to a reference value. For degree Celsius, the arbitrary determination, as described, is between 0 degree and 100 degrees, depending on the aggregate ­state of the water.

While Kelvin is the base unit for temperature in the international system of units SI (Système international d'unités), degree Celsius (°C) is an officially derived SI unit. As a derived SI unit, the degree Celsius (°C) is officially approved in many European countries, especially in Germany, Austria and Switzerland.

Info about "Fahrenheit"

In the USA, the Fahrenheit scale with the unit degree Fahrenheit (°F) is still very common. Daniel Gabriel Fahrenheit was a German physicist who developed his temperature scale in 1714. Fahrenheit used, as the zero point of his scale, the lowest temperature he could produce with a mixture of ice, water and ammonia. This was -17.8 degrees Celsius, which he defined as the zero point of his scale, i.e., 0 degree Fahrenheit.

As a second and third fixed point, Fahrenheit defined the freezing point of normal water at 32 degrees Fahrenheit and the body temperature of a healthy person at 96 degrees Fahrenheit. In conjunction with the improved accuracy of measurements in the 19th century and the conversion ­method to todays Kelvin and Celsius degrees, the current fixed points of the Fahrenheit scale are at the freezing point (32 degrees Fahrenheit) and the boiling point of water (212 degrees Fahrenheit). With Celsius and Kelvin, there are 100 degrees, i.e., 100 scales, between the freezing point and the boiling point of water, whereas with Fahrenheit, there are 212 − 32 = 180 scales. Therefore, the conversion from Fahrenheit to, e.g., Celsius is done on the one hand via the shift of 32 degrees at the freezing point of water and on the other hand via the number of individual scale­ marks, i.e., the division into 180 instead of 100 degrees up to the boiling point of water. Thus, the Conversion formula for Celsius to Fahrenheit is as follows:

°F = °C × 1.8 + 32

The Fahrenheit scale is only officially used in the USA and its outlying areas, including Belize, the Bahamas and the Cayman Islands.

Basis for conversion Kelvin (K) to Fahrenheit (°F) and vice versa

The abbreviation for the "Temperature Unit Kelvin" is K. The abbreviation for the "Temperature Unit Fahrenheit" is °F.

Formula for the conversion of Kelvin (K) to Fahrenheit (°F) and vice versa

The calculation from Kelvin to Fahrenheit shall be made using the following conversion formula:

 Conversion formula Kelvin to Fahrenheit 

Determine the number of Fahrenheit from Kelvin

°F = (K - 273.15) * 1.8 + 32


Formula for the conversion of Fahrenheit (°F) to Kelvin (K)

The calculation from Fahrenheit to Kelvin shall be made using the following conversion formula:

 Conversion formula Fahrenheit to Kelvin 

Determine the number of Kelvin from Fahrenheit

K = (°F - 32) / 1.8 + 273.15


Overview table : How many Kelvin are in a Fahrenheit ?

Kelvin K ⇒ Fahrenheit °F
0.01 K  are  -459.652 °F
0.02 K  are  -459.634 °F
0.03 K  are  -459.616 °F
0.04 K  are  -459.598 °F
0.05 K  are  -459.58 °F
0.06 K  are  -459.562 °F
0.07 K  are  -459.544 °F
0.08 K  are  -459.526 °F
0.09 K  are  -459.508 °F
0.10 K  are  -459.49 °F
0.20 K  are  -459.31 °F
0.30 K  are  -459.13 °F
0.40 K  are  -458.95 °F
0.50 K  are  -458.77 °F
0.60 K  are  -458.59 °F
0.70 K  are  -458.41 °F
0.80 K  are  -458.23 °F
0.90 K  are  -458.05 °F
1 K  corresponds to  -457.87 °F
2 K  are  -456.07 °F
3 K  are  -454.27 °F
4 K  are  -452.47 °F
5 K  are  -450.67 °F
6 K  are  -448.87 °F
7 K  are  -447.07 °F
8 K  are  -445.27 °F
9 K  are  -443.47 °F
10 K  are  -441.67 °F
20 K  are  -423.67 °F
30 K  are  -405.67 °F
40 K  are  -387.67 °F
50 K  are  -369.67 °F
60 K  are  -351.67 °F
70 K  are  -333.67 °F
80 K  are  -315.67 °F
90 K  are  -297.67 °F
100 K  are  -279.67 °F
200 K  are  -99.67 °F
300 K  are  80.33 °F
400 K  are  260.33 °F
500 K  are  440.33 °F
600 K  are  620.33 °F
700 K  are  800.33 °F
800 K  are  980.33 °F
900 K  are  1160.33 °F
1 000 K  are  1340.33 °F

Overview table : How many Fahrenheit are in a Kelvin ?

Fahrenheit °F ⇒ Kelvin K
0.01 °F  are  255.3778 K
0.02 °F  are  255.3833 K
0.03 °F  are  255.3889 K
0.04 °F  are  255.3944 K
0.05 °F  are  255.4 K
0.06 °F  are  255.4056 K
0.07 °F  are  255.4111 K
0.08 °F  are  255.4167 K
0.09 °F  are  255.4222 K
0.10 °F  are  255.4278 K
0.20 °F  are  255.4833 K
0.30 °F  are  255.5389 K
0.40 °F  are  255.5944 K
0.50 °F  are  255.65 K
0.60 °F  are  255.7056 K
0.70 °F  are  255.7611 K
0.80 °F  are  255.8167 K
0.90 °F  are  255.8722 K
1 °F  corresponds to  255.9278 K
2 °F  are  256.4833 K
3 °F  are  257.0389 K
4 °F  are  257.5944 K
5 °F  are  258.15 K
6 °F  are  258.7056 K
7 °F  are  259.2611 K
8 °F  are  259.8167 K
9 °F  are  260.3722 K
10 °F  are  260.9278 K
20 °F  are  266.4833 K
30 °F  are  272.0389 K
40 °F  are  277.5944 K
50 °F  are  283.15 K
60 °F  are  288.7056 K
70 °F  are  294.2611 K
80 °F  are  299.8167 K
90 °F  are  305.3722 K
100 °F  are  310.9278 K
200 °F  are  366.4833 K
300 °F  are  422.0389 K
400 °F  are  477.5944 K
500 °F  are  533.15 K
600 °F  are  588.7056 K
700 °F  are  644.2611 K
800 °F  are  699.8167 K
900 °F  are  755.3722 K
1 000 °F  are  810.9278 K

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Source information

As source for the information in the 'Temperatures' category, we have used in particular:

Last update on November 25, 2022

The pages of the 'Temperatures' category were last editorially reviewed by Michael Mühl on November 25, 2022. They all correspond to the current status.

Previous changes on November 25, 2019

  • Publication of the topic Convert Temperatures together with the corresponding texts.
  • Editorial revision of all texts in this category