How is Celsius converted to Kelvin?

The correct formula for converting Celsius to Kelvin is to add 273.15 to the temperature in degrees Celsius. This is because the Kelvin scale starts at absolute zero, which is defined as 0 Kelvin. The Celsius scale, on the other hand, has its zero point at the freezing point of water, which is 273.15 degrees above absolute zero. Therefore, to convert from Celsius to Kelvin, you need to account for this difference in the starting point of the two scales by adding 273.15 to the Celsius value.

This conversion is crucial in scientific calculations where absolute temperature measurements are required, as Kelvin is the SI unit of temperature.