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Rankine to Celsius Converter

Convert Rankine (°R) to Celsius (°C) instantly. Enter any value — result updates live.

Temperature Converter
Result
-272.6°C
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Formula: °C = °R × 5/9 − 273.15

About converting Rankine to Celsius

Converting Rankine to Celsius is a common temperature conversion. One rankine (°R) equals -272.6 celsius (°C). Rankine is an absolute temperature scale using Fahrenheit degree intervals, used in some US engineering applications.

This conversion is commonly needed for scientific experiments, HVAC and home heating, industrial processes. Celsius is used in most countries worldwide and in all scientific applications.

To put rankine in perspective: water freezes (491.67 °R). In celsius, common references include water boils (100 °C).

Did you know?

The Rankine scale, proposed by Scottish engineer William Rankine in 1859, is essentially Fahrenheit shifted so 0 °R equals absolute zero — it's still used in some US thermodynamics and aerospace contexts.

Real-world examples
Rankine (°R)
  • absolute zero (0 °R)
  • water freezes (491.67 °R)
  • water boils (671.67 °R)
Celsius (°C)
  • water freezes (0 °C)
  • a comfortable room (21 °C)
  • water boils (100 °C)
Did you know?

The Celsius scale was invented by Swedish astronomer Anders Celsius in 1742, but he originally set 0° as boiling and 100° as freezing — it was later reversed.

Common uses for temperature conversion

People frequently convert between rankine and celsius for:

  • weather and travel planning
  • cooking and baking
  • scientific experiments
  • HVAC and home heating
  • industrial processes
Popular Rankine to Celsius conversions
Rankine (°R)Celsius (°C)
1 °R-272.6 °C
2 °R-272 °C
5 °R-270.4 °C
10 °R-267.6 °C
15 °R-264.8 °C
20 °R-262 °C
25 °R-259.3 °C
30 °R-256.5 °C
50 °R-245.4 °C
100 °R-217.6 °C
200 °R-162 °C
500 °R4.62778 °C
1000 °R282.4 °C
More Rankine conversions
Rankine to Fahrenheit°R → °FRankine to Kelvin°R → K
Frequently asked questions
How do you convert Rankine to Celsius?
To convert Rankine to Celsius, use the formula: °C = °R × 5/9 − 273.15. For example, 1 °R = -272.6 °C.
What is 1 Rankine in Celsius?
1 °R is equal to -272.6 °C.
How many rankine are in 1 celsius?
1 °C is equal to 493.5 °R. To convert Celsius back to Rankine, multiply the celsius value by 493.5.
When would I need to convert rankine to celsius?
This conversion is commonly needed for weather and travel planning, cooking and baking, scientific experiments. Rankine is an absolute temperature scale using Fahrenheit degree intervals, used in some US engineering applications. Celsius is used in most countries worldwide and in all scientific applications.
What does 1 rankine look like in real life?
For reference, a typical rankine measurement is absolute zero (0 °R). So 1 °R (-272.6 °C) gives you a practical sense of scale.