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# Rankine

The Rankine scale is a thermodynamic temperature based on an absolute scale named after the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859. (The Kelvin scale was first proposed in 1848.) The symbol for degrees Rankine is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). By analogy with kelvin, some authors term the unit rankine, omitting the degree symbol. Zero on both the Kelvin and Rankine scales is absolute zero, but a temperature difference of one Rankine degree is defined as equal to one Fahrenheit degree, rather than the Celsius degree used on the Kelvin scale. A temperature of −459.67 °F is exactly equal to 0 °R.

Rankine
Symbol/abbreviation: °R
Unit of: TEMPERATURE
TEMPERATURE's base unit: kelvin (SI Unit)
In relation to the base unit (kelvin), 1 Rankine = 0.55555555555556 kelvin.

## Conversion table 1 Rankine (°R) to all temperature units

1 °R= -272.59444444444 celsius (°C)
1 °R= 558.89166666667 delisle (°De)
1 °R= -458.67 fahrenheit (°F)
1 °R= 0.55555555555556 kelvin (K)
1 °R= -89.956166666667 newton scale (°N)
1 °R= 1 rankine (°R)
1 °R= -218.07555555556 reaumur (°Re)
1 °R= -135.61208333333 romer (°Rø)