kelvin to degree Celsius — free converter
Formula
°C = K − 273.15
Worked example
15 kelvin = -258.15 degrees Celsius.
Conversion table
| Kelvin | Degree celsius |
|---|---|
| 1 kelvin | -272.15 degrees Celsius |
| 2 kelvin | -271.15 degrees Celsius |
| 5 kelvin | -268.15 degrees Celsius |
| 10 kelvin | -263.15 degrees Celsius |
| 25 kelvin | -248.15 degrees Celsius |
| 50 kelvin | -223.15 degrees Celsius |
| 100 kelvin | -173.15 degrees Celsius |
What these units mean
Kelvin is the scientific temperature scale that starts at absolute zero. Celsius is the temperature scale used for weather and cooking in most of the world. When you change from kelvin to degrees Celsius, you are simply expressing the same amount on a different scale, so the quantity itself does not change — only the number and the unit label do. A quick everyday check helps: picture the amount in your own life first, then let the converter do the arithmetic, and the result should feel roughly right before you use it for a purchase, a recipe or a journey.
FAQs about kelvin to degree Celsius
How many degrees Celsius are in 1 kelvin?
1 kelvin = -272.15 degree Celsius.
What is the formula for kelvin to degree Celsius?
°C = K − 273.15. Temperature is not a simple multiplication: it uses a formula with an added or subtracted constant, because the two scales start at different points.
What is 15 kelvin in degrees Celsius?
15 kelvin = -258.15 degrees Celsius.
How do I convert degrees Celsius back to kelvin?
Use the reverse page: degree Celsius to kelvin. The converter on that page swaps the direction for you.
Is the kelvin to degree Celsius result exact?
The factor is the standard published factor, and the converter shows the result rounded for reading. For everyday use this is exact enough; for engineering or laboratory work, check the rounding your task requires.