0 Celsius = 273.15 kelvin
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| Unit | Symbol | Value |
|---|
How to Convert Celsius to Kelvin
The formula is K = °C + 273.15. 0 Celsius = 273.15 kelvin. Type any value in the converter above for an instant answer, or use the chart below for the most common values.
This page is preset for Celsius to kelvin conversions, but you can switch either list to any of the 6 units in the Temperature Converter, or go the other way with the Kelvin to Celsius converter.
Celsius to Kelvin conversion chart
| Celsius | Kelvin |
|---|---|
| -273.15 °C | 0 K |
| -40 °C | 233.15 K |
| -35 °C | 238.15 K |
| -30 °C | 243.15 K |
| -25 °C | 248.15 K |
| -20 °C | 253.15 K |
| -15 °C | 258.15 K |
| -10 °C | 263.15 K |
| -5 °C | 268.15 K |
| 0 °C | 273.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 15 °C | 288.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 35 °C | 308.15 K |
| 37 °C | 310.15 K |
| 40 °C | 313.15 K |
| 45 °C | 318.15 K |
| 50 °C | 323.15 K |
| 55 °C | 328.15 K |
| 60 °C | 333.15 K |
| 65 °C | 338.15 K |
| 70 °C | 343.15 K |
| 75 °C | 348.15 K |
| 80 °C | 353.15 K |
| 85 °C | 358.15 K |
| 90 °C | 363.15 K |
| 95 °C | 368.15 K |
| 100 °C | 373.15 K |
Common Celsius to Kelvin conversions
- 0 Celsius = 273.15 kelvin
- -273.15 °C = 0 K
- 0 °C = 273.15 K
- 25 °C = 298.15 K
- 37 °C = 310.15 K
- 100 °C = 373.15 K
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How to Use the Celsius to Kelvin Converter
- Type a value in the From box and choose its unit.
- Pick the unit you want in the To list — the result updates as you type.
- Use the swap button to reverse the conversion, or type in the To box to convert backwards.
- Check the All conversions table to see your value in every unit; click a row to make it the target.
Frequently Asked Questions
How do I convert Celsius to Kelvin?
Use the formula K = °C + 273.15. For example, 0 Celsius = 273.15 kelvin. Or type the value in the converter above and the answer appears as you type.
What is the Celsius to Kelvin formula?
K = °C + 273.15.
What is -273.15 Celsius in kelvin?
-273.15 Celsius = 0 kelvin.
What is 0 Celsius in kelvin?
0 Celsius = 273.15 kelvin.
What is 25 Celsius in kelvin?
25 Celsius = 298.15 kelvin.
What is 37 Celsius in kelvin?
37 Celsius = 310.15 kelvin.
What is 100 Celsius in kelvin?
100 Celsius = 373.15 kelvin.
How do I convert Kelvin back to Celsius?
Use the swap button in the converter above, or open our Kelvin to Celsius converter. °C = K − 273.15.
Is this Celsius to Kelvin converter accurate?
Yes. It uses exact unit definitions and double-precision maths, and you can show up to 15 significant digits. The table below is calculated with the same formula.
Can I convert Celsius to other temperature units?
Yes — pick any unit in the From and To lists above, or open the full Temperature Converter, which handles 6 temperature units.
Is the Celsius to Kelvin converter free?
Yes, it is free with no sign-up, and every conversion runs in your browser so nothing is sent to a server.