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.
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 |
Source information
As source for the information in the 'Temperatures' category, we have used in particular:
Last update on February 20, 2023
The pages of the 'Temperatures' category were last editorially reviewed by Michael Mühl on February 20, 2023. 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