# Kelvin to Rømer

Calculates the Rømer temperature from the given Kelvin scale value

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## Kelvin to Rømer

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 Rømer temperature scale was proposed by Ole Christensen Rømer in 1701. This measure was fix the zero initially using freezing brine, then it adjusts 60 degree at the point of the boiling of pure water and 7.5 degree as the freezing point. The unit is represented by °Rø after the value. Beware sometimes it has appeared as °R just like for Réaumur and Rankine scales.

The Rømer temperature scale values are calculated from Kelvin using the formula $$(Kelvin - 273.15) × {21 \over 40} + 7.5$$

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