Celsius to Kelvin (°C to K) Converter
Formula: K = °C + 273.15. Absolute zero is 0 K = −273.15 °C.
Formula:K = °C + 273.15
⇄ Switch to Kelvin To CelsiusCelsius to Kelvin — common values
-40 °C233.15 K
0 °C273.15 K
20 °C293.15 K
37 °C310.15 K
100 °C373.15 K
200 °C473.15 K
500 °C773.15 K
How to convert Celsius To Kelvin
To convert celsius to kelvin, use the formula: K = °C + 273.15. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Kelvin To Celsius” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Celsius To Kelvin?
K = °C + 273.15. Formula: K = °C + 273.15. Absolute zero is 0 K = −273.15 °C.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Kelvin To Celsius?
Use the Kelvin To Celsius converter or click the ⇄ switch button above.
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