Convert Kelvins to Fahrenheit

Enter the temperature in kelvins below to get the value converted to Fahrenheit.

Results in Degrees Fahrenheit:
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1 K = -457.87 °F

How to Convert Kelvins to Fahrenheit

Thermometers measure temperature and come in many forms and sizes

Convert kelvins to degrees Fahrenheit with this simple formula:

degrees Fahrenheit = ( [K] - 273.15 ) × 9 / 5 + 32

Insert the [K] temperature measurement in the formula and then solve to find the result.

For example, let's convert 50 K to degrees Fahrenheit:

50 K = ( ( 50 - 273.15 ) × 9 / 5 + 32 ) = -369.67 °F

Kelvins and Fahrenheit are both units used to measure temperature. Keep reading to learn more about each unit of measure.


The Kelvin scale is an absolute temperature scale that uses absolute zero as the starting point. The kelvin is defined in terms of the Boltzmann constant, which is a measure of the energy of motion corresponding to one kelvin. 0 kelvins are equal to −273.15 degrees Celsius, which is the point of absolute zero.

The kelvin is the SI base unit for temperature in the metric system. Kelvins can be abbreviated as K, for example 1 kelvin can be written as 1 K.

The kelvin scale is different from other temperature scales in that it is not expressed in degrees, values are expressed in kelvins. When using the Kelvin scale in writing, the "k" is capitalized, however when using the kelvin as a unit the "k" should be lower-case, even though it is named for a person.

Important Temperatures In Kelvins

Absolute Zero0 K
Freezing Point of Water273.15 K
Triple Point of Water273.16 K
Boiling Point of Water373.15 K


The Fahrenheit scale is a temperature scale that defines the melting point of water as 32 degrees and the boiling point of water at 212 degrees. There are 180 intervals between 32 °F and 212 °F, each corresponding to one degree.

The degree Fahrenheit is a US customary and imperial unit of temperature. Fahrenheit can be abbreviated as F, for example 1 degree Fahrenheit can be written as 1 °F.

Important Temperatures In Degrees Fahrenheit

TemperatureDegrees Fahrenheit
Absolute Zero-459.67 °F
Freezing Point of Water32 °F
Triple Point of Water32.018 °F
Boiling Point of Water212 °F

Kelvin Measurements and Equivalent Fahrenheit Conversions

Common kelvin values converted to the equivalent Fahrenheit value
Kelvins Fahrenheit
-50 K -549.67 °F
-40 K -531.67 °F
-30 K -513.67 °F
-20 K -495.67 °F
-10 K -477.67 °F
0 K -459.67 °F
10 K -441.67 °F
20 K -423.67 °F
30 K -405.67 °F
40 K -387.67 °F
50 K -369.67 °F
60 K -351.67 °F
70 K -333.67 °F
80 K -315.67 °F
90 K -297.67 °F
100 K -279.67 °F
110 K -261.67 °F
120 K -243.67 °F
130 K -225.67 °F
140 K -207.67 °F
150 K -189.67 °F
160 K -171.67 °F
170 K -153.67 °F
180 K -135.67 °F
190 K -117.67 °F
200 K -99.67 °F
300 K 80.33 °F
400 K 260.33 °F
500 K 440.33 °F
600 K 620.33 °F
700 K 800.33 °F
800 K 980.33 °F
900 K 1,160 °F
1000 K 1,340 °F

More Kelvin Temperature Conversions

Convert to Celsius
1 K is equal to -272.15 °C
Convert to Rankine
1 K is equal to 1.8 °R
Convert to Delisle
1 K is equal to 558.225 °De
Convert to Newton
1 K is equal to -89.8095 °N

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.