# Rankine to Kelvin

Calculates the Kelvin temperature from the given Rankine scale value

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## Rankine to Kelvin

The Rankine temperature scale was proposed by William John Macquorn Rankine in 1859 similarly to Kelvin temperature scale. The zero absolute at Rankine scale is also 0 K, and degree of Rankine is the same than Fahrenheit degree. The Rankine is represented as °R after the value, and sometimes like °RA.

The Kelvin temperature scale was described by William Thomson, 1st Baron Kelvin in his paper of 1848 On an Absolute Thermometric Scale the idea of starting to measure the temperature from the zero absolute or where the atomic particles just stop moving. The letter K represents its unit after the value.

The Kelvin values are calculated from Rankine values following the formula $$Kelvin × {5 \over 9}$$