How to convert Celsius to Rankine
Celsius and Rankine are related by a formula rather than a single factor. Temperature conversions are needed for weather, cooking, science and travel. Temperature scales have different zero points, so conversions use offsets as well as ratios.

Celsius to Rankine conversion table
| Celsius (°C) | Rankine (°R) |
|---|---|
| -40 °C | 419.67 °R |
| -20 °C | 455.67 °R |
| -10 °C | 473.67 °R |
| 0 °C | 491.67 °R |
| 10 °C | 509.67 °R |
| 20 °C | 527.67 °R |
| 25 °C | 536.67 °R |
| 30 °C | 545.67 °R |
| 37 °C | 558.27 °R |
| 40 °C | 563.67 °R |
| 50 °C | 581.67 °R |
| 100 °C | 671.67 °R |
About the units
Celsius (°C)
Celsius sets water freezing at 0 °C and boiling at 100 °C at sea level.
Rankine (°R)
Rankine is an absolute scale with Fahrenheit-sized degrees; 0 °R is absolute zero.
How to use this converter
- Type the number of Celsius (°C) in the input box.
- The result in Rankine appears instantly — no button needed.
- See the same value in every other temperature unit just below.
- Use “Swap units” to convert Rankine back to Celsius.
Tips for better results
- Double-check which system a unit belongs to (for example US vs UK gallons).
- Use the swap button to convert in the opposite direction instantly.
- Bookmark the conversions you use most — each pair has its own page.
Frequently asked questions
How many Rankine are in one celsius?
493.47 °R corresponds to 1 °C. Because this scale uses an offset or an inverse relationship, there is no single multiplication factor — use the formula above.
How do I convert Celsius to Rankine?
Apply the formula shown on this page, or enter your value in the converter for an instant exact answer.
What is 37 °C in °R?
37 °C = 558.27 °R. Also, 0 °C = 491.67 °R and 100 °C = 671.67 °R.
What is the difference between a celsius and a rankine?
Celsius sets water freezing at 0 °C and boiling at 100 °C at sea level. Rankine is an absolute scale with Fahrenheit-sized degrees; 0 °R is absolute zero.
Is this tool free and private?
Yes — the Celsius to Rankine is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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