On this page - **Rankine to Celsius:**

## Rankine To Celsius Formula

Use this formula to convert a temperature in Rankine (K) to Celsius (°R).

If required, there are worked examples below which use this formula to show how to convert a temperature in Rankine to a temperature in Celsius.

As with any math calculation and conversion, it's good practice to double check your results. If you are using this formula for your own conversions, you can check your result with the Rankine to Celsius calculator.

Temperature scales are usually named after the person who created them. The temperature scales used in this formula were created by William John Macquorn Rankine (1820-1872), and Anders Celsius (1701–1744).

Given the Rankine scale was invented many years after the Celsius scale, it's probable William Rankine also created this formula for converting Rankine to Celsius.

## How To Convert Rankine To Celsius

Using the **Rankine to Celsius formula: Celsius (°C) = (Rankine - 491.67) / 1.8**, these examples show how to convert a temperature in Rankine to Celsius.

#### Worked Example 1

### How To Convert 500 Rankine (°R) to Celsius (°C)

°C = | ( 500 - 491.67 ) / 1.8 |

= | 8.33 / 1.8 |

= | -4.63 °C |

∴ | therefore, 500 Rankine (°R) is equal to -4.63 Celsius (°C) ( to 2 decimal places ) |

check this result with the conversion calculator

#### Worked Example 2

### How To Convert 650 Rankine (°R) to Celsius (°C)

°C = | ( 650 - 491.67 ) / 1.8 |

= | 158.33 / 1.8 |

= | 87.96 °C |

∴ | therefore, 650 Rankine (°R) is equal to 87.96 Celsius (°C) ( to 2 decimal places ) |

check this result with the conversion calculator

*Albert Einstein & his impostor are shown for illustrative purposes.*

Anders Celsius (1701–1744), is the proponent of the Celsius temperature scale.

## Formula Or Equation?

Is a formula, an equation, or both used to convert Rankine to Celsius?

I regard the formulae* , on the Calculate and Convert section of this website, as being formulae

andequations -each formula is in the form of an equation.* 'formulae', (

and formulas), are the plural of formula