Celsius to Kelvin
Convert celsius to kelvin instantly, with a reference table.
Celsius to Kelvin at a glance
Celsius to Kelvin is a free online converter you can use right now to convert celsius to kelvin 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
Celsius to Kelvin conversion table
| Celsius (ยฐC) | Kelvin (K) |
|---|---|
| 1 ยฐC | 274.15 K |
| 2 ยฐC | 275.15 K |
| 3 ยฐC | 276.15 K |
| 5 ยฐC | 278.15 K |
| 10 ยฐC | 283.15 K |
| 25 ยฐC | 298.15 K |
| 50 ยฐC | 323.15 K |
| 100 ยฐC | 373.15 K |
| 500 ยฐC | 773.15 K |
| 1000 ยฐC | 1,273.15 K |
About Celsius to Kelvin
Convert celsius to kelvin 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 celsius-to-kelvin conversion for you.
A scientific conversion: chemistry and physics calculations involving gas laws and thermodynamics require absolute temperature, so Celsius readings must be shifted to kelvin before use.
Anders Celsius proposed the scale in 1742 โ originally inverted, with 0 as boiling and 100 as freezing, which was reversed after his death. It is now defined against the kelvin, with 0 ยฐC at 273.15 K. 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.
Worked through with real numbers: -10 ยฐC is 263.15 K, 0 ยฐC is 273.15 K, 20 ยฐC is 293.15 K, 100 ยฐC is 373.15 K.
As for the other side of the conversion: absolute zero is 0 K, water freezes at 273.15 K, and a kelvin is exactly the same size as a Celsius degree.
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 Celsius to Kelvin
- Enter the number of celsius you want to convert.
- The equivalent in kelvin appears instantly โ there is no button to press.
- Check the reference table for common Celsius to Kelvin values.
Frequently asked questions
How do I convert celsius to kelvin?
Enter a value above and the exact kelvin temperature appears instantly, using the standard celsius-to-kelvin formula.
When would I need to convert celsius to kelvin?
A scientific conversion: chemistry and physics calculations involving gas laws and thermodynamics require absolute temperature, so Celsius readings must be shifted to kelvin before use.
What is a celsiu, exactly?
Anders Celsius proposed the scale in 1742 โ originally inverted, with 0 as boiling and 100 as freezing, which was reversed after his death. It is now defined against the kelvin, with 0 ยฐC at 273.15 K. Water freezes at 0 ยฐC and boils at 100 ยฐC at sea level, and normal human body temperature is about 37 ยฐC.
Where is the kelvin actually used?
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.
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.