How do you convert Celsius to Kelvin?

To convert Celsius to Kelvin, you need to add 273.15 to the Celsius temperature. When using a simplified version, you can round this to 273 for basic calculations. The Kelvin scale is an absolute temperature scale starting at absolute zero, which is equivalent to -273.15 degrees Celsius. Therefore, to find the Kelvin equivalent of a Celsius measurement, you start from the Celsius temperature and adjust it upward by this fixed value.

In this case, adding 273 provides the required conversion to arrive at the correct Kelvin value. This understanding is crucial in scientific contexts where temperature needs to be measured on an absolute scale, such as in thermodynamics or physical chemistry.