Kelvin to Celsius
Convert kelvin to celsius instantly, with a reference table.
Kelvin to Celsius at a glance
Kelvin to Celsius is a free online converter you can use right now to convert kelvin to celsius instantly, with a reference table โ no account, no install and no usage limit. It runs entirely inside your browser, so whatever you enter stays on your own device.
- Price
- Free โ no trial, no paid tier, no watermark
- Sign-up
- Not required
- Where it runs
- In your browser โ nothing is uploaded to a server
- Works on
- Chrome, Safari, Firefox and Edge โ desktop, tablet and phone
- Category
- Unit Conversions
Kelvin to Celsius conversion table
| Kelvin (K) | Celsius (ยฐC) |
|---|---|
| 1 K | -272.15 ยฐC |
| 2 K | -271.15 ยฐC |
| 3 K | -270.15 ยฐC |
| 5 K | -268.15 ยฐC |
| 10 K | -263.15 ยฐC |
| 25 K | -248.15 ยฐC |
| 50 K | -223.15 ยฐC |
| 100 K | -173.15 ยฐC |
| 500 K | 226.85 ยฐC |
| 1000 K | 726.85 ยฐC |
About Kelvin to Celsius
Convert kelvin to celsius instantly, with a reference table of common values. Because the two scales do not share a zero point, this needs a formula rather than a single multiplier โ the converter applies the exact kelvin-to-celsius conversion for you.
Used to make an absolute temperature intelligible in everyday terms โ interpreting a scientific result, or reading the colour temperature rating on a light bulb.
The kelvin starts at absolute zero โ the point where thermal motion is minimal and no lower temperature is physically possible. It has no degree symbol and no negative values, which is precisely the point of it. It is the SI base unit of temperature, used throughout physics and chemistry, and in lighting to describe colour temperature โ the 2700K on a warm bulb and 6500K on a daylight one. Absolute zero is 0 K, water freezes at 273.15 K, and a kelvin is exactly the same size as a Celsius degree.
Worked through with real numbers: -10 K is -283.15 ยฐC, 0 K is -273.15 ยฐC, 20 K is -253.15 ยฐC, 100 K is -173.15 ยฐC.
As for the other side of the conversion: water freezes at 0 ยฐC and boils at 100 ยฐC at sea level, and normal human body temperature is about 37 ยฐC.
Temperature is the one conversion here that needs a formula rather than a single factor, because Celsius and Fahrenheit do not share a zero point. That offset also means a temperature difference converts differently from a temperature: a rise of 10 ยฐC is a rise of 18 ยฐF, not 50 ยฐF.
How to use Kelvin to Celsius
- Enter the number of kelvin you want to convert.
- The equivalent in celsius appears instantly โ there is no button to press.
- Check the reference table for common Kelvin to Celsius values.
Frequently asked questions
How do I convert kelvin to celsius?
Enter a value above and the exact celsius temperature appears instantly, using the standard kelvin-to-celsius formula.
When would I need to convert kelvin to celsius?
Used to make an absolute temperature intelligible in everyday terms โ interpreting a scientific result, or reading the colour temperature rating on a light bulb.
What is a kelvin, exactly?
The kelvin starts at absolute zero โ the point where thermal motion is minimal and no lower temperature is physically possible. It has no degree symbol and no negative values, which is precisely the point of it. Absolute zero is 0 K, water freezes at 273.15 K, and a kelvin is exactly the same size as a Celsius degree.
Where is the celsiu actually used?
It is the everyday temperature scale in almost every country, and the scientific standard for ordinary laboratory work. Water freezes at 0 ยฐC and boils at 100 ยฐC at sea level, and normal human body temperature is about 37 ยฐC.
Is there anything tricky about temperature conversions?
Temperature is the one conversion here that needs a formula rather than a single factor, because Celsius and Fahrenheit do not share a zero point. That offset also means a temperature difference converts differently from a temperature: a rise of 10 ยฐC is a rise of 18 ยฐF, not 50 ยฐF.
Is this converter accurate?
Yes. It applies the standard scale conversion exactly, with no rounding beyond what is shown.