Celsius to Kelvin (°C to K) Converter
How to convert Celsius To Kelvin
K = °C + 273.15.
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 to reverse the conversion direction.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000), accurate to 8 significant figures.
Frequently Asked Questions
How many Kelvins are in one Celsius?
K = °C + 273.15. Formula: K = °C + 273.15. Absolute zero is 0 K = −273.15 °C.
What is the formula to convert Celsius to Kelvin?
K = °C + 273.15. Multiply the Celsius value by the conversion factor to get Kelvin.
How do I convert Kelvin To Celsius?
Use the Kelvin To Celsius converter — formula: °C = K - 273.15. Click the ⇄ switch button above for the reverse conversion.
Is this Celsius to Kelvin converter free?
Yes — completely free, no registration required. Works instantly in your browser using precise mathematical constants validated against SI standards.