Convert Celsius to Kelvin (°C to K) instantly with this flexible temperature converter. Whether you’re checking physics problems, comparing scientific values, or reviewing lab data, this tool lets you input values, import files, and see clean Kelvin results right away. You can show the formula, round results, and keep your line formatting intact.
How to Use:
Start by entering Celsius values into the left-hand input box. You can paste multiple values, one per line. As soon as you type, the right-hand box updates with Kelvin conversions.
You can also click “Choose File” to upload a .txt, .csv, or other safe text file. Your file’s content will replace the current input.
Under “Options,” you’ll see toggle switches:
- Round to 2 decimals: Keeps results neat and consistent
- Show formula used: Adds the full calculation (e.g.,
25°C + 273.15 = 298.15K) - Keep empty lines: Preserves line spacing from your input
Use the Copy Output button to copy results to your clipboard, or click Export Output to download a .txt version. Clear All resets everything back to the demo.
What Celsius to Kelvin | °C to K can do:
This tool handles line-by-line Celsius input and converts each line using the formula K = °C + 273.15. You can toggle options for how the output is displayed. If rounding is on, all Kelvin values are limited to two decimals. If formula mode is enabled, the output includes the full equation used per value.
Every time the output updates, the right box flashes blue so you can quickly spot changes. The tool also counts how many values it processed and shows that number underneath the output box.
Example:
Input:
0
100
-273.15
37Output (with formula on):
0°C + 273.15 = 273.15K
100°C + 273.15 = 373.15K
-273.15°C + 273.15 = 0.00K
37°C + 273.15 = 310.15KCommon Use Cases:
The Celsius to Kelvin | °C to K converter is great for students doing science homework, researchers formatting data, or anyone who needs accurate Kelvin results without manually typing formulas. It’s especially helpful when working with temperature logs or imported sensor data where formatting matters.
Celsius to Kelvin °C to K Conversion Table:
The Celsius to Kelvin Table helps you convert everyday Celsius temperatures into their equivalent values on the absolute Kelvin scale. Ranging from –30°C to 50°C, this chart is perfect for anyone working in temperature-sensitive fields. It uses the simple formula K = °C + 273.15 to provide accurate results at a glance no calculator needed.
| Celsius (°C) | Kelvin (K) |
|---|---|
| -30 | 243.15 |
| -20 | 253.15 |
| -10 | 263.15 |
| 0 | 273.15 |
| 5 | 278.15 |
| 10 | 283.15 |
| 15 | 288.15 |
| 20 | 293.15 |
| 25 | 298.15 |
| 30 | 303.15 |
| 35 | 308.15 |
| 40 | 313.15 |
| 45 | 318.15 |
| 50 | 323.15 |
Useful Tools & Suggestions:
If you’re converting between temperatures, it’s handy to keep the Fahrenheit to Celsius °F to °C tool nearby especially if you’re working with mixed datasets. You might also want to look at Convert Temperature °C °F K °R if you need to jump across multiple scales in one go.