NCEES FE Other Disciplines 2025 – 400 Free Practice Questions to Pass the Exam

To convert Celsius to Kelvin, you add 273.15 to the Celsius temperature. This is based on the definition of the Kelvin scale, which sets absolute zero (0 K) at -273.15 °C. Thus, the relationship between Celsius and Kelvin can be expressed by the equation:

\[ K = °C + 273.15. \]

This means that if you have a temperature in degrees Celsius, you can find the equivalent temperature in Kelvin by performing this simple addition. The Kelvin scale is often used in scientific contexts where absolute temperatures are necessary, and this conversion ensures that the zero point on the Kelvin scale corresponds to the complete absence of thermal energy.