Rankine to Newton

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.

Newton (°N): The Newton scale was devised by Isaac Newton around 1700. It used the freezing point of water as 0 and the boiling point as 33. It is considered a direct predecessor to the Celsius scale.