**Full name:** degree Rankine

**Plural form:** degrees Rankine

**Symbol:** °R

**Alternate spelling:** R

**Category type:** temperature

**Scale factor:** 0.55555555555556

The SI base unit for temperature is the kelvin.

1 kelvin is equal to 1.8 degree Rankine.

Valid units must be of the **temperature** type.

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Rankine is a thermodynamic (absolute) temperature scale named after the Scottish engineer and physicist William John Macquorn Rankine, who proposed it in 1859.

The symbol is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). As with the Kelvin scale (symbol: K), zero on the Rankine scale is absolute zero. The Rankine scale differs from the Kelvin scale in that it uses smaller, degree Fahrenheit-size increments rather than degree Celsius-size increments. A temperature of 459.67 °R is precisely equal to and 0 °F.

Many engineering fields in the U.S. measure thermodynamic temperature using the Rankine scale. However, throughout the scientific world where measurements are made in SI units, thermodynamic temperature is measured in kelvins.

degree Rankine to degree newton

degree Rankine to degree Fahrenheit

degree Rankine to degree Celsius

degree Rankine to degree Rømer

degree Rankine to degree Réaumur

degree Rankine to degree Delisle

degree Rankine to kelvin