How are temperature on Celsius and Kelvin scales related?

The Celsius to Kelvin formula is
T(K) = T(°C) + 273.15
Though each unit on both scales is the same size, the fact that one of them starts 273.15 degrees past the other makes them different.
They start at different points because they define zero degrees differently. The Celsius scale defines zero degrees Celsius as the melting point of water. The Kelvin scale defines zero Kelvin as .
Here is an example of converting Celsius to Kelvin:
Convert 14 degrees Celsius to Kelvin
T(K) = 14°C + 273.15 = 287.15 K