Celsius To Rankine Conversion

1 °C = 493.47 °R

Want to convert from Rankine to Celsius instead?

Disclaimer: We've spent hundreds of hours building and testing our calculators and conversion tools. However, we cannot be held liable for any damages or losses (monetary or otherwise) arising out of or in connection with their use. Full disclaimer.

How to convert Celsius to Rankine (°C to °R)

Converting from Celsius to Rankine is a simple process. First you multiply the Celsius value by 9⁄5, and then add 491.67. The Rankine scale is an absolute temperature scale, similar to the Kelvin scale, but with the freezing point of water at 491.67 °R (0 °C) and the boiling point of water at 671.67 °R (100 °C). The formula to convert from Celsius to Rankine is: °R = (9⁄5 × °C) + 491.67. A variation on this formula is: Rankine = (Celsius + 273.15) × 9⁄5. Below is the step-by-step process for converting from Celsius to Rankine.

Step-by-step: converting from Celsius to Rankine

Take the temperature in degrees Celsius that you want to convert.
Add 273.15 to this temperature. This is because the Rankine scale uses absolute temperature, which starts at absolute zero (0 K or -273.15°C).
After adding 273.15, multiply the result by 9/5. This accounts for the different temperature scales between Celsius and Rankine.
The result will be the temperature in degrees Rankine.

Example Conversion

Let's take a look at an example. The step-by-step process to convert 100 Celsius to Rankine is:

Understand the conversion formula: °R = (9⁄5 × °C) + 491.67
Substitute the required value. In this case we substitute 100 for °C so the formula becomes: °R = (9⁄5 × 100) + 491.67
Calculate the result using the provided values. In our example the result is: (9⁄5 × 100) + 491.67 = 671.67 °R

In summary, 100 Celsius is equal to 671.67 Rankine.

Converting Rankine to Celsius

In order to convert the other way around i.e. Rankine to Celsius, you would use the following formula: °C = 5⁄9 × (°R - 491.67). To convert Rankine to Celsius first substitute the Rankine value into the above formula, and then execute the calculation. If we wanted to calculate 1 Rankine in Celsius we follow these steps:

°C = 5⁄9 × (°R - 491.67)

°C = 5⁄9 × (1 - 491.67)

°C = -272.59444444444443

Or in other words, 1 Rankine is equal to -272.59444444444443 Celsius.

Conversion Unit Definitions

What is a Celsius?

Celsius is a unit of temperature measurement in the metric system. It is named after the Swedish astronomer Anders Celsius, who proposed the Celsius temperature scale in 1742. The Celsius scale is widely used around the world, particularly in scientific, industrial, and everyday applications.

Here are some more details about Celsius:

Temperature Scale: The Celsius scale is based on dividing the temperature range between the freezing and boiling points of water into 100 equal divisions or degrees. On this scale, the freezing point of water is defined as 0 degrees Celsius (°C), and the boiling point of water is defined as 100 degrees Celsius (°C) at standard atmospheric pressure.
Metric System: Celsius is part of the metric system, which is a decimal-based system of measurement used internationally. The metric system provides a coherent and standardized system for measuring various quantities, including temperature.
Conversion: Celsius can be converted to other temperature scales. One of the most common conversions is to the Fahrenheit scale. The formula to convert Celsius to Fahrenheit is: Fahrenheit = (Celsius x 9/5) + 32. Similarly, Celsius can be converted to the Kelvin scale by adding 273.15 to the Celsius measurement.
Common Uses: Celsius is commonly used to measure temperature in scientific, meteorological, and everyday contexts. It is used in weather forecasts, climate studies, laboratory experiments, household thermometers, and many other applications.
Symbol: The symbol for degrees Celsius is "°C". For example, a temperature measurement of 25 degrees Celsius would be written as 25 °C.
Temperature Range: The Celsius scale covers a wide range of temperatures, from extreme cold to extreme heat. The lowest temperature on the Celsius scale is -273.15 degrees Celsius, which is known as absolute zero. This temperature represents the lowest possible temperature at which molecular motion ceases.
International Usage: The Celsius scale is widely used internationally as a standard unit of temperature measurement, especially in countries that have adopted the metric system. Its usage promotes consistency, compatibility, and ease of communication across different regions and scientific fields.

What is a Rankine?

Rankine is a unit of temperature measurement in the absolute temperature scale. It is primarily used in engineering and thermodynamics, particularly in the United States. The Rankine scale is named after the Scottish engineer and physicist William Rankine, who proposed the absolute temperature scale in the mid-19th century.

Here are some more details about Rankine:

Absolute Temperature Scale: The Rankine scale is an absolute temperature scale that is similar to the Kelvin scale but uses a different zero point. On the Rankine scale, absolute zero is defined as 0 Rankine (°R), which is equal to -459.67 degrees Fahrenheit. The size of the Rankine degree is the same as the Fahrenheit degree, so the temperature increments are the same.
Conversion: Rankine can be converted to other temperature scales. One common conversion is to the Fahrenheit scale. The formula to convert Rankine to Fahrenheit is: Fahrenheit = Rankine - 459.67. Rankine can also be converted to the Kelvin scale by dividing the Rankine measurement by 1.8.
Symbol: The symbol for degrees Rankine is "°R". For example, a temperature measurement of 550 degrees Rankine would be written as 550 °R.
Common Uses: Rankine is primarily used in engineering and thermodynamics, especially in the United States. It is often used in the analysis and calculation of temperature in power generation, refrigeration, and other thermal systems.
Relationship to Other Scales: The Rankine scale is closely related to the Fahrenheit scale, as they have the same size of degree. However, Rankine is an absolute temperature scale, similar to the Kelvin scale. In fact, the Rankine scale and the Kelvin scale have the same temperature increments, with the only difference being the zero points.
International Usage: The Rankine scale is not widely used internationally, as the Kelvin scale is the standard for absolute temperature measurement in most countries around the world. The Rankine scale is mainly used in the United States, particularly in engineering and industrial applications.