The Kelvin scale, which is named after the Englishman, Lord Kelvin. it is based on the theory that there is a lowest possible temperature that exists in the universe- the absolute zero. It is the temperature at which all possible thermal energy has been transferred away from the body. Hence, the Kelvin scale is also called the Absolute scale.
The unit for this scale is the kelvin (k). This is the Si unit for temperature. One unit of kelvin is the same size as one unit of degree Celsius, but the kelvin starts its scale at 0K- the absolute zero.
