100 °C to °R — 100 degrees Celsius in degrees Rankine
Exact 100 × 1.8 + 491.67 = 671.67
100 degrees Celsius in other units
| Degrees Fahrenheit | 212 | °F |
|---|---|---|
| Kelvin | 373.15 | K |
| Degrees Rankine | 671.67 | °R |
°C to °R at a glance
| Degrees Celsius | Degrees Rankine |
|---|---|
| 1 °C | 493.47 °R |
| 2 °C | 495.27 °R |
| 3 °C | 497.07 °R |
| 5 °C | 500.67 °R |
| 10 °C | 509.67 °R |
| 20 °C | 527.67 °R |
| 25 °C | 536.67 °R |
| 50 °C | 581.67 °R |
| 100 °C | 671.67 °R |
| 250 °C | 941.67 °R |
| 500 °C | 1,391.67 °R |
| 1,000 °C | 2,291.67 °R |
How to convert degrees Celsius to degrees Rankine
Multiply by 493.47 — one degree Celsius is 493.47 degrees Rankine. That factor is exact: it comes from the definition of the units rather than from a measurement, so it will not change and does not need rounding.
Working 100 × 1.8 + 491.67 = 671.67
In words: about six hundred seventy-two degrees Rankine.
What these units are
The degree Celsius and the degree Rankine are covered in the temperature unit guide, along with every other unit on this page.
Questions
How many degrees Rankine are in a degree Celsius?
One degree Celsius is 493.47 degrees Rankine. This figure is exact — it comes from the definition of the unit, not a measurement.
What is 100 degrees Celsius in degrees Rankine?
100 degrees Celsius is 671.67 degrees Rankine. The working is 100 × 1.8 + 491.67 = 671.67.
Why can't I just multiply to convert Celsius to Fahrenheit?
Because the two scales do not start in the same place. Zero Celsius is 32 Fahrenheit, so you have to shift as well as scale: multiply by 9/5, then add 32. Multiplying alone is right only for a temperature difference, never a temperature.
Where do the two scales meet?
At −40. Minus forty Celsius and minus forty Fahrenheit are the same temperature, which is the one value you can quote in either scale without converting.
Is it 'degrees Kelvin'?
No. Kelvin is written without the degree sign and without the word degree — 300 K, read as three hundred kelvin. It is an absolute scale, so there is no offset to name.
What is Rankine for?
Rankine is Fahrenheit's absolute scale: same size step, but starting at absolute zero instead of the Fahrenheit zero. It still turns up in US thermodynamics and aerospace work.