Home › Temperature › Celsius to Kelvin
Convert celsius to kelvin instantly. Enter a value below, or use the formula and reference table further down the page.
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How to convert celsius to kelvin
Multiply by 1, then add 273.15.
K = (°C × 1) + 273.15Example: 10 °C = 283.15 K.
Celsius to Kelvin conversion table
| Celsius (°C) | Kelvin (K) |
|---|---|
| 1 °C | 274.15 K |
| 2 °C | 275.15 K |
| 3 °C | 276.15 K |
| 4 °C | 277.15 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 |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
Frequently asked questions
How many kelvin is 1 degree Celsius?
1 degree Celsius equals 274.15 kelvin.
What is the formula to convert °C to K?
To convert °C to K, multiply by 1 and add 273.15. The full formula is: K = (°C × 1) + 273.15.
How do I convert kelvin back to celsius?
Use the same calculator above and type your value into the kelvin field instead — it converts in both directions. Or use the reverse formula: °C = (K − 273.15) ÷ 1.
Is the °C to K conversion exact?
The conversion factor used here (1) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.