What is the formula to convert Celsius to Kelvin?

The formula to convert Celsius to Kelvin is based on the relationship between the two temperature scales. Kelvin is an absolute temperature scale, where 0 K is absolute zero, the theoretical point at which all thermal motion ceases. The Celsius scale is a relative scale, defined so that 0 °C is the freezing point of water and 100 °C is the boiling point.

To convert a temperature from Celsius to Kelvin, you need to add 273.15 to the Celsius temperature. This shift accounts for the difference in the starting points of the two scales; 0 °C corresponds to 273.15 K. Therefore, the correct formula is K = C + 273.15.

This conversion is essential in scientific and engineering contexts, as many calculations involving thermodynamic properties require temperatures in Kelvin. Understanding this conversion ensures accurate measurements and consistency in scientific communication.