Celsius to Kelvin Converter
Convert celsius to kelvin instantly. Exact formula shown with the result.
Free toolNo signupFormula shown
Convert celsius to kelvin
This pair converts by formula, not a single factor. Type any value and the result updates instantly; the math is shown beneath the board.
Worked by hand
Temperature conversions pivot through Celsius: rescale the degrees, then shift the zero point.
Worked example
- Take 100 °C
- apply the formula shown above the fold
- the result is 373.2 K
How to use it
- Enter your celsius
- Read the kelvin result
- Check the factor line to verify by hand
Frequently asked questions
How many kelvin are in one celsius?
Temperature scales offset, so the answer depends on the value; use the formula shown in the result.
How do I convert kelvin back to celsius?
Run the formula in reverse.
Is this rounding or exact?
The factor is exact; only the displayed decimals are rounded.