"Rankine scale." YourDictionary, n.d. Web. 18 December 2018. <https://www.yourdictionary.com/rankine-scale>.
Rankine scale. (n.d.). Retrieved December 18th, 2018, from https://www.yourdictionary.com/rankine-scale
A scale of absolute temperature having the same degree increments as those of the Fahrenheit scale, in which the freezing point of water is 491.69° and the boiling point is 671.69°. A temperature in degrees Fahrenheit is converted to a temperature in degrees Rankine by the addition of 459.67°.