# Rankine Temperature Scale; Uses, Definition and Conversions

We use different temperature scales to measure the temperature around the world in different countries and different unit systems. Also, one of these temperature scales is the Rankine temperature scale which we use in scientific calculations in the English unit system.

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## What is the Rankine Temperature Scale?

We use this temperature scale in scientific and thermodynamic calculations in the English unit system. Like in the Kelvin temperature scale, the absolute zero point is defined as zero and the freezing temperature of the water is defined as the 491.67 °R.

Also, the Rankine temperature scale is named after the renowned physicist Macquorn Rankine.

## Temperature Conversion between This and Other Temperature Scales

In general, there are temperature scales that people use both in people and in scientific calculations. These temperature scales are Rankine, Kelvin, Celsius, and Fahrenheit. So, we use the conversions between these temperature scales commonly.

### Conversions between Rankine and Fahrenheit

Fahrenheit is the common temperature scale that we use in the US Customary system. And also, the American people are familiar with Fahrenheit. Furthermore, the conversion between the Fahrenheit and the Rankine temperature scales is very simple like this;

°F = °R – 459.67

Firstly, to find the Fahrenheit equivalent of the Rankine temperature, you just need to subtract the 459.67 from the Rankine. Also, to find the Rankine from Fahrenheit, you need to add 459.67 to the Fahrenheit.

### Temperature Conversion between Rankine and Celsius

Furthermore, if you are a user of SI unit systems in your daily life and if you are dealing with scientific calculations in English units, you will probably use the temperature conversion between the Rankine and Celsius temperature scales. This is very easy;

°C = (°R – 491.67) × 5/9

To find the Celius equivalent of the Rankine, you just need to subtract 491.67 from the Rankine and multiply this value by 5/9 to find the Celsius equivalent of it. To make the opposite calculation, you just need to divide the Celsius with 5/9 and add 491.67 to it to find the Rankine equivalent.

### Temperature Conversions with Kelvin

Kelvin is the equivalent temperature scale of Rankine in the SI unit system. So the temperature conversion between the Rankine and Kelvin is very simple to calculate;

R = 0.55*K

You just need to multiply the Kelvin with 0.55 to find the Rankin equivalent of it. To make the conversion in opposite direction, you need to divide the Rankine by 0.55 to find the Kelvin equivalent.

Fahrenheit and Celsius temperature conversions are also very important.

## Conclusion

So, these are the general aspects of the Rankine temperature scale which people use mainly in thermodynamics calculations.

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