Convert Rankine to Celsius

Enter a value below to convert Rankine [°R] to Celsius [°C]. Reverse conversion: Convert Celsius to Rankine.

Converting Rankine to Celsius is not a simple multiplication — it follows a formula. As a reference, 1 °R equals -272.594444444 °C and 10 °R equals -267.594444444 °C. Use the calculator above for exact results.

Rankine to Celsius: Quick Reference

  • 1 °R = -272.594444444 °C
  • 10 °R = -267.594444444 °C
  • 100 °R = -217.594444444 °C



How to Convert Rankine to Celsius

The conversion between Rankine and Celsius is not linear or involves a specific formula. Please use the calculator above for an accurate conversion.

To convert from Rankine to the base unit, the formula is: y = Rankine * (5/9)

To convert from the base unit to Celsius, the formula is: y = base_unit_value - 273.15


Rankine to Celsius Conversion Table

Rankine Celsius
1 °R -272.594444444 °C
2 °R -272.038888889 °C
3 °R -271.483333333 °C
5 °R -270.372222222 °C
10 °R -267.594444444 °C
20 °R -262.038888889 °C
50 °R -245.372222222 °C
100 °R -217.594444444 °C
500 °R 4.62777777778 °C
1000 °R 282.405555556 °C

Rankine: Definition and Use

Rankine (°R) is an absolute temperature scale used primarily in engineering, where 0°R represents absolute zero and each degree Rankine is equivalent to one degree Fahrenheit.

History/Origin

The Rankine scale was introduced by William John Macquorn Rankine in 1859 as an absolute temperature scale based on the Fahrenheit degree, primarily used in the United States for thermodynamic calculations.

Current Use

Today, the Rankine scale is mainly used in certain engineering fields within the United States, especially in thermodynamics and heat transfer calculations, but it is largely replaced by the Kelvin scale in scientific contexts.


Celsius: Definition and Use

Celsius (°C) is a unit of temperature measurement where 0°C is the freezing point of water and 100°C is the boiling point at standard atmospheric pressure.

History/Origin

The Celsius scale was developed by Anders Celsius in 1742, originally with 0°C as the boiling point of water and 100°C as the freezing point, later reversed to its current form.

Current Use

Celsius is widely used worldwide for everyday temperature measurements, scientific research, and weather reporting, especially in most countries outside the United States.


Rankine to Celsius: Frequently Asked Questions

How do you convert Rankine to Celsius?

This conversion uses a formula rather than a fixed factor. For example, 10 °R = -267.594444444 °C. Enter any value in the converter above for an instant, accurate result.

What is 100 Rankine in Celsius?

100 °R is equal to -217.594444444 °C.