Rankine to Celsius converter
Type a Rankine value and read Celsius instantly, with the other two scales alongside. The formula is °C = (°R − 491.67) × 5/9.
- 0 °R = −273.15 °C
- 491.67 °R = 0 °C
- 527.67 °R = 20 °C
- 671.67 °R = 100 °C
How to convert Rankine to Celsius
°C = (°R − 491.67) × 5/9
Celsius is the everyday scale almost everywhere outside the United States: 0 °C is where water freezes and 100 °C where it boils at sea level. Step through a worked example:
°C = (°R − 491.67) × 5/9
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°R to °C table
| Rankine (°R) | Celsius (°C) |
|---|---|
| 0 °R | −273.15 °C |
| 100 °R | −217.59 °C |
| 200 °R | −162.04 °C |
| 300 °R | −106.48 °C |
| 400 °R | −50.93 °C |
| 419.67 °R | −40 °C |
| 459.67 °R | −17.78 °C |
| 491.67 °R | 0 °C |
| 500 °R | 4.63 °C |
| 527.67 °R | 20 °C |
| 537.67 °R | 25.56 °C |
| 558.27 °R | 37 °C |
| 600 °R | 60.18 °C |
| 671.67 °R | 100 °C |
| 700 °R | 115.74 °C |
| 800 °R | 171.29 °C |
| 1000 °R | 282.41 °C |
| 1500 °R | 560.18 °C |
| 2000 °R | 837.96 °C |
Need more rows? The full temperature conversion chart goes from −50 to 300 °C.
Questions
How do you convert Rankine to Celsius?
Use °C = (°R − 491.67) × 5/9. For example, 527.67 °R is 20 °C.
What is 0 °R in Celsius?
0 °R equals −273.15 °C.
What is 100 °R in Celsius?
100 °R equals −217.59 °C.
Why use Celsius?
Celsius is the everyday scale almost everywhere outside the United States: 0 °C is where water freezes and 100 °C where it boils at sea level.
What is the temperature unit °R?
°R is the degree Rankine, an absolute temperature unit the same size as a Fahrenheit degree. 0 °R is absolute zero (−459.67 °F), water freezes at 491.67 °R and boils at 671.67 °R at sea level.
Are Rankine and Kelvin the same?
Both start at absolute zero, but a kelvin is 1.8 times bigger than a degree Rankine. So °R = K × 9/5: 300 K is 540 °R.