EngiRef / Temperature conversion
Convert Degrees Celsius to Degrees Rankine (°C to °R)
°R = °C × 1.8 + 491.67. Convert degrees Celsius to degrees Rankine with the exact formula, a common-values table and a free converter.
Conversion formula
°R = °C × 1.8 + 491.67
Temperature scales set their zero in different places, so this is an offset conversion, not a ratio. There is no single number you can multiply by: °C 0 is 491.67 °R, and doubling the input does not double the result. Apply the multiplier, then the offset, in that order.
°C to °R table
| Degrees Celsius (°C) | Degrees Rankine (°R) |
|---|---|
| 0 °C | 491.67 °R |
| 1 °C | 493.47 °R |
| 2 °C | 495.27 °R |
| 5 °C | 500.67 °R |
| 10 °C | 509.67 °R |
| 20 °C | 527.67 °R |
| 50 °C | 581.67 °R |
| 100 °C | 671.67 °R |
Every figure is computed at build time by the site’s own converter from the temperature unit registry. For a value that is not listed, put it into the interactive converter.
Frequently asked questions
What is 1 °C in °R?
1 °C is 493.47 °R. Because temperature scales are offset rather than proportional, this figure is not a multiplier: 100 °C is 671.67 °R, not 100 times 493.47.
What is the formula to convert degrees Celsius to degrees Rankine?
°R = °C × 1.8 + 491.67. Apply the multiplier first, then the offset. Every value in the table on this page is computed with that formula by the same converter the tool below runs.
How do I convert degrees Rankine back to degrees Celsius?
Use the inverse formula, °C = °R × 0.555555556 - 273.15. The °R to °C page carries the same table in that direction.