Rankine (°R) to Fahrenheit (°F) Conversion
Rankine
The Rankine scale is an absolute temperature scale using the same degree size as Fahrenheit but with zero at absolute zero (−459.67 °F). It is to Fahrenheit what Kelvin is to Celsius. Used primarily in US aerospace engineering and thermodynamic cycle analysis where Fahrenheit-sized degrees are conventional but absolute temperature values are required. Water freezes at 491.67 °R and boils at 671.67 °R.
Fahrenheit
The Fahrenheit scale was developed by Daniel Gabriel Fahrenheit in 1724 and sets the freezing point of water at 32 °F and the boiling point at 212 °F, creating a 180-degree interval exactly 9/5 of the Celsius interval. Today the Fahrenheit scale is the official temperature scale of the United States and several Caribbean nations.
| Rankine (°R) | Fahrenheit (°F) |
|---|---|
| 474 °R | 14.33 °F |
| 492 °R | 32.33 °F |
| 510 °R | 50.33 °F |
| 528 °R | 68.33 °F |
| 537 °R | 77.33 °F |
| 546 °R | 86.33 °F |
| 558 °R | 98.33 °F |
| 564 °R | 104.33 °F |
| 582 °R | 122.33 °F |
| 600 °R | 140.33 °F |
| 672 °R | 212.33 °F |
Frequently Asked Questions (FAQ)
What is the formula to convert Rankine to Fahrenheit?
The exact formula is °F = °R − 459.67. For example: 491.67 °R = 32°F and 671.67 °R = 212°F. Because Rankine and Fahrenheit use the same degree size, only the zero-point offset changes.
What is 0 Rankine in Fahrenheit?
0 °R equals −459.67°F, which is absolute zero — the coldest possible temperature. Using the formula: 0 − 459.67 = −459.67°F.
Convert Rankine (°R) to other units of Temperature
| ‣ Rankine (°R) to Celsius (°C) |
| ‣ Rankine (°R) to Fahrenheit (°F) |
| ‣ Rankine (°R) to Kelvin (K) |
| ‣ Rankine (°R) to Rankine (°R) |
| ‣ Celsius (°C) to Rankine (°R) |
| ‣ Fahrenheit (°F) to Rankine (°R) |
| ‣ Kelvin (K) to Rankine (°R) |
| ‣ Rankine (°R) to Rankine (°R) |