Rankine to Kelvin

Rankine (°R): The Rankine scale is an absolute thermodynamic temperature scale that uses the Fahrenheit degree size. Zero degrees Rankine (°R) is equivalent to absolute zero. It is primarily used in engineering systems in the United States.

Kelvin (K): The Kelvin scale is the base unit of thermodynamic temperature in the International System of Units (SI). It is an absolute temperature scale, meaning 0 K (absolute zero) is the point where all thermal motion ceases. It has no degrees symbol (°).