Fahrenheit to Rankine converter
Type a Fahrenheit value and read Rankine instantly, with the other two scales alongside. The formula is °R = °F + 459.67.
- 32 °F = 491.67 °R
- 68 °F = 527.67 °R
- 98.6 °F = 558.27 °R
- 350 °F = 809.67 °R
How to convert Fahrenheit to Rankine
°R = °F + 459.67
Rankine is an absolute scale with Fahrenheit-sized degrees. It shows up in US thermodynamics, HVAC and aerospace work, where engineers want an absolute scale but think in Fahrenheit steps. Step through a worked example:
°R = °F + 459.67
- …
°F to °R table
| Fahrenheit (°F) | Rankine (°R) |
|---|---|
| −40 °F | 419.67 °R |
| −20 °F | 439.67 °R |
| 0 °F | 459.67 °R |
| 10 °F | 469.67 °R |
| 20 °F | 479.67 °R |
| 32 °F | 491.67 °R |
| 40 °F | 499.67 °R |
| 50 °F | 509.67 °R |
| 60 °F | 519.67 °R |
| 65 °F | 524.67 °R |
| 68 °F | 527.67 °R |
| 70 °F | 529.67 °R |
| 72 °F | 531.67 °R |
| 75 °F | 534.67 °R |
| 80 °F | 539.67 °R |
| 90 °F | 549.67 °R |
| 98.6 °F | 558.27 °R |
| 100 °F | 559.67 °R |
| 104 °F | 563.67 °R |
| 150 °F | 609.67 °R |
| 212 °F | 671.67 °R |
| 300 °F | 759.67 °R |
| 325 °F | 784.67 °R |
| 350 °F | 809.67 °R |
| 375 °F | 834.67 °R |
| 400 °F | 859.67 °R |
| 425 °F | 884.67 °R |
| 450 °F | 909.67 °R |
| 500 °F | 959.67 °R |
Need more rows? The full temperature conversion chart goes from −50 to 300 °C.
Questions
How do you convert Fahrenheit to Rankine?
Use °R = °F + 459.67. For example, 68 °F is 527.67 °R.
What is 0 °F in Rankine?
0 °F equals 459.67 °R.
What is 100 °F in Rankine?
100 °F equals 559.67 °R.
Why use Rankine?
Rankine is an absolute scale with Fahrenheit-sized degrees. It shows up in US thermodynamics, HVAC and aerospace work, where engineers want an absolute scale but think in Fahrenheit steps.
What is the temperature unit °R?
°R is the degree Rankine, an absolute temperature unit the same size as a Fahrenheit degree. 0 °R is absolute zero (−459.67 °F), water freezes at 491.67 °R and boils at 671.67 °R at sea level.
Are Rankine and Kelvin the same?
Both start at absolute zero, but a kelvin is 1.8 times bigger than a degree Rankine. So °R = K × 9/5: 300 K is 540 °R.