Convert Rankine (°R) to Kelvin (K) | °R in K

You are: Home > Temperature > Rankine to Kelvin

Let's convert Rankine (°R) to Kelvin (K)

This quick and easy calculator will convert Rankine (°R) to Kelvin (K) and show formula, brief history on the units and quick maths for the conversion.

Enter Rankine to convert to Kelvin


Quick Reference for Converting Rankine to Kelvin

Formula
K = °R / 1.8
Quick Rough Maths
To get the Kelvin, take the Rankine and divide by 1.8
Rankine (°R) in 1 Kelvin
There are 1.8 Rankine in 1 Kelvin
Kelvin (K) in 1 Rankine
There are 0.56 Kelvin in 1 Rankine

Unit Information

Rankine
/ˈræŋ kɪn/
Symbol: °R
Unit System: Imperial

What is the Rankine?

Rankine (or degrees Rankine) is a scale of temperature derived from an imperial unit and is denoted by the symbol °R.

Rankine is defined as a vector or shift from the Farenheit scale. Like the Kelvin (but 11 years later in 1859), it was also developed by a physicist from Glasgow University - namely William John Macquorn Rankine and was proposed to be used in engineering systems where heat computations are done in degrees Farenheit rather than Celsius.

Zero on both the Kelvin and Rankine scales is absolute zero (infinite cold - or the absolute absence of any thermal energy whatsoever).

The boiling point of water is 671.64102 °R. The freezing point of water is 491.67 °R.

Kelvin
/ˈkɛlvɪn/
Symbol: K
Unit System: SI

What is the Kelvin?

Kelvin is the SI base unit for temperature and is has the symbol K.

Kelvin is named after 1st Baron Kelvin, William Thomson who was born in Belfast and studied engineering and physics at Glasgow University.

The scale was based on Lord Kelvin's theory whereby a) there was a need for "absolute zero" or "infinite cold" to be represented by 0 and b) used degree Celsius to increment each unit.

The Kelvin has also been adapted to measure colour temperature and noise temperature; both with the capability to express amounts of "warmth". The photosphere of the sun, for example, has an effective colour temperature of 5778K.


Conversion Tables for Rankine (°R) to Kelvin (K)