Rankine to Celsius Converter
How to convert Rankine to Celsius
°C = (°R − 491.67) ÷ 1.8
To convert Rankine to Celsius, subtract 491.67 from the value in Rankine, then divide by 1.8.
1 °R = -272.594444 °C
Examples
- Water freezes: (491.67 °R − 491.67) ÷ 1.8 = 0 °C
- (500 °R − 491.67) ÷ 1.8 = 4.62777778 °C
Good to know
The scales differ in both zero point and degree size: °R = (°C + 273.15) × 1.8. Water freezes at 0 °C, which is 491.67 °R.
The Rankine scale starts at absolute zero, so there are no negative Rankine temperatures.
Rankine to Celsius conversion table
| Rankine (°R) | Celsius (°C) |
|---|---|
| 0 °R | -273.15 °C |
| 100 °R | -217.594444 °C |
| 200 °R | -162.038889 °C |
| 300 °R | -106.483333 °C |
| 400 °R | -50.9277778 °C |
| 459.67 °R | -17.7777778 °C |
| 491.67 °R | 0 °C |
| 500 °R | 4.62777778 °C |
| 527.67 °R | 20 °C |
| 550 °R | 32.4055556 °C |
| 600 °R | 60.1833333 °C |
| 671.67 °R | 100 °C |
| 700 °R | 115.738889 °C |
| 800 °R | 171.294444 °C |
| 1,000 °R | 282.405556 °C |
| 1,500 °R | 560.183333 °C |
Unit definitions
- Rankine (°R)
- The Rankine scale starts at absolute zero and uses degrees the same size as the degree Fahrenheit, so a temperature in degrees Rankine is the Fahrenheit temperature plus 459.67. It is used in some US engineering calculations.
- Celsius (°C)
- The Celsius scale is defined as the temperature in kelvins minus 273.15, which puts the freezing point of water at about 0 °C and its boiling point at about 100 °C at sea-level pressure. It is the everyday temperature scale in most of the world.