Celsius to Rankine converter
Type a Celsius value and read Rankine instantly, with the other two scales alongside. The formula is °R = (°C + 273.15) × 9/5.
- 0 °C = 491.67 °R
- 20 °C = 527.67 °R
- 37 °C = 558.27 °R
- 100 °C = 671.67 °R
How to convert Celsius to Rankine
°R = (°C + 273.15) × 9/5
Rankine is an absolute scale with Fahrenheit-sized degrees. It shows up in US thermodynamics, HVAC and aerospace work, where engineers want an absolute scale but think in Fahrenheit steps. Step through a worked example:
°R = (°C + 273.15) × 9/5
- …
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°C to °R table
| Celsius (°C) | Rankine (°R) |
|---|---|
| −40 °C | 419.67 °R |
| −30 °C | 437.67 °R |
| −20 °C | 455.67 °R |
| −18 °C | 459.27 °R |
| −10 °C | 473.67 °R |
| −5 °C | 482.67 °R |
| 0 °C | 491.67 °R |
| 5 °C | 500.67 °R |
| 10 °C | 509.67 °R |
| 15 °C | 518.67 °R |
| 20 °C | 527.67 °R |
| 21 °C | 529.47 °R |
| 22 °C | 531.27 °R |
| 25 °C | 536.67 °R |
| 30 °C | 545.67 °R |
| 35 °C | 554.67 °R |
| 37 °C | 558.27 °R |
| 40 °C | 563.67 °R |
| 50 °C | 581.67 °R |
| 60 °C | 599.67 °R |
| 70 °C | 617.67 °R |
| 80 °C | 635.67 °R |
| 90 °C | 653.67 °R |
| 100 °C | 671.67 °R |
| 150 °C | 761.67 °R |
| 180 °C | 815.67 °R |
| 200 °C | 851.67 °R |
| 220 °C | 887.67 °R |
| 250 °C | 941.67 °R |
Need more rows? The full temperature conversion chart goes from −50 to 300 °C.
Questions
How do you convert Celsius to Rankine?
Use °R = (°C + 273.15) × 9/5. For example, 20 °C is 527.67 °R.
What is 0 °C in Rankine?
0 °C equals 491.67 °R.
What is 100 °C in Rankine?
100 °C equals 671.67 °R.
Why use Rankine?
Rankine is an absolute scale with Fahrenheit-sized degrees. It shows up in US thermodynamics, HVAC and aerospace work, where engineers want an absolute scale but think in Fahrenheit steps.
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.