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Single conversion
To convert from Kelvin (K) to degree Fahrenheit (F), use the following formula:
Let's convert 5 Kelvin (K) to degree Fahrenheit (F).
Using the formula:
Therefore, 5 Kelvin (K) is equal to degree Fahrenheit (F).
Here are some quick reference conversions from Kelvin (K) to degree Fahrenheit (F):
| Kelvins | degrees Fahrenheit |
|---|---|
| 0.000001 K | F |
| 0.001 K | F |
| 0.1 K | F |
| 1 K | F |
| 2 K | F |
| 3 K | F |
| 4 K | F |
| 5 K | F |
| 6 K | F |
| 7 K | F |
| 8 K | F |
| 9 K | F |
| 10 K | F |
| 20 K | F |
| 30 K | F |
| 40 K | F |
| 50 K | F |
| 100 K | F |
| 1000 K | F |
| 10000 K | F |
For all Temperature converters, choose units using the From/To dropdowns above.
The kelvin (K) is a unit of measurement for temperature, similar to the Celsius and Fahrenheit scales. What sets it apart?
Most people typically refer to temperature in Fahrenheit or Celsius. Still, scientists favor Kelvin due to its status as an absolute scale. This means it starts at the lowest possible temperature in the universe, making it ideal for accurate scientific research.
It's also one of the seven base units in the International System of Units (SI).
The Kelvin scale begins at 0 K, a point known as absolute zero. This isn't just a random number—it's the theoretical temperature where all atomic motion would completely stop. It's the ultimate cold.
Unlike Celsius, where 0° is the freezing point of water, 0 K is based on a fundamental truth of the universe. This non-arbitrary starting point is why scientists in fields like physics and astronomy rely on it.
While you won't use Kelvin to check the daily weather, it's essential in many scientific and technological fields.
The good news is that converting between Kelvin and Celsius is very easy. The size of one unit is identical in both scales, meaning a change of 1 K is the same as a change of 1 °C.
Here are the conversion formulas you need:
Examples:
The scale is named after its inventor, the brilliant Scottish engineer and physicist William Thomson, 1st Baron Kelvin (1824–1907). In 1848, he introduced an "absolute" thermometric scale beginning at what he called "infinite cold" — the temperature now known as absolute zero. His work established the foundational principles of a measurement system central to modern science.
A degree Fahrenheit (°F) is the unit of temperature used in the imperial system of measurement.
The Fahrenheit scale was created in 1724 by the German physicist Daniel Gabriel Fahrenheit. He based his scale on three fixed points:
While most of the world has adopted the Celsius scale for everyday temperature measurement, the Fahrenheit scale remains the official scale in the United States, its territories (like Puerto Rico and Guam), and a few other countries, including the Bahamas, Palau, and the Cayman Islands.
In the United Kingdom, both Fahrenheit and Celsius are used to describe temperature; Fahrenheit remains more familiar to older people and is often heard in casual conversation.
You can easily convert any temperature from Fahrenheit to Celsius using a simple formula. To convert a temperature from Fahrenheit (F) to Celsius (C), subtract 32 from the Fahrenheit temperature and then multiply the result by 5/9.
The Fahrenheit to Celsius formula is: C = (F − 32) × 5/9
For example, to convert a pleasant day of 77 °F to Celsius: C = (77 − 32) × 5/9 = 45 × 5/9 = 25 °C