Convert Kelvin to Celsius (K to C)
Instantly convert kelvin to celsius with this free online converter. Type a value below and the result updates in real time. All calculations run in your browser, nothing is sent to a server.
Kelvin to Celsius Formula
C = K - 273.15
Subtract 273.15 from the Kelvin value.
Common Kelvin to Celsius Conversions
| Kelvin (K) | Celsius (C) |
|---|---|
| 0 K | -273.15 C |
| 77 K | -196.15 C |
| 233 K | -40.15 C |
| 273.15 K | 0 C |
| 293.15 K | 20 C |
| 298.15 K | 25 C |
| 310.15 K | 37 C |
| 373.15 K | 100 C |
How to Convert Kelvin to Celsius
- Enter the kelvin value in the input field above.
- The celsius result appears instantly as you type.
- Click the copy button to copy the result to your clipboard.
- To convert in the other direction, click the Swap button or visit the Celsius to Kelvin converter.
Frequently Asked Questions
How many celsius are in one kelvin?
Use the converter above to find the exact value for any kelvin amount.
What is the formula to convert K to C?
The formula is: C = K - 273.15. Subtract 273.15 from the Kelvin value.
How do I convert celsius back to kelvin?
Use our reverse converter: Celsius to Kelvin. You can also click the "Swap" button above the converter.
Is this converter accurate?
Yes. This converter uses the standard conversion factor and handles up to 8 decimal places of precision. All calculations run instantly in your browser with no rounding shortcuts.
Do I need to sign up to use this converter?
No. This converter is completely free with no signup, no account, and no usage limits. Your data never leaves your browser.
About This Tool
- Tool
- FreeToolPark Kelvin to Celsius Converter
- Type
- Free online tool, no signup required
- Domain Expertise
- Unit conversion, measurement systems, data format conversion
- Privacy
- 100% client-side, no data stored
- Description
- Free kelvin to celsius converter. Instantly convert K to C with a reference table of common values. No signup, runs in your browser.
Cite This Tool
FreeToolPark. "Kelvin to Celsius Converter." FreeToolPark, 2026, www.freetoolpark.com/tools/convert/k-to-c. Accessed April 14, 2026.