🌡️ Celsius to Kelvin
Convert Celsius to Kelvin instantly. Free online °C to K converter for science and physics.
Formula: K = °C + 273.15
Conversion Reference Table
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How to Convert Celsius to Kelvin
The formula to convert Celsius to Kelvin is simply: K = °C + 273.15. This is one of the easiest temperature conversions because the Kelvin and Celsius scales have the same size degrees — they just start at different zero points. 0 K (absolute zero) = −273.15°C.
Kelvin is the SI base unit of temperature and is used in science, physics and engineering. Room temperature (20°C) is 293.15 K. The boiling point of water (100°C) is 373.15 K. The surface of the sun is approximately 5,778 K (5,504.85°C). Absolute zero (0 K) is the coldest possible temperature — at this point, all molecular motion stops.
About This C To Kelvin
This free c to kelvin is designed to give you instant, accurate results without any complicated steps. Simply enter your value, select your units, and the result appears immediately — no need to click a calculate button. All calculations are performed locally in your browser, so your data stays private and the tool works even without an internet connection.
How to Use This Calculator
Using this c to kelvin is straightforward. Enter the value you want to convert or calculate in the input field, choose your starting unit from the dropdown menu, and the converted result will appear instantly in all available units. You can also use the swap button to reverse the conversion direction with a single click.
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