Convert Fahrenheit (°F) to Rankine (°R) instantly. Enter any value and get the result immediately.
°F → °R Converter
| Fahrenheit (°F) | Rankine (°R) |
|---|---|
| 0.1 °F | 459.77 °R |
| 0.5 °F | 460.17 °R |
| 1 °F | 460.67 °R |
| 2 °F | 461.67 °R |
| 5 °F | 464.67 °R |
| 10 °F | 469.67 °R |
| 20 °F | 479.67 °R |
| 50 °F | 509.67 °R |
| 100 °F | 559.67 °R |
| 200 °F | 659.67 °R |
| 500 °F | 959.67 °R |
| 1000 °F | 1459.67 °R |
| 5000 °F | 5459.67 °R |
| 10000 °F | 10,459.67 °R |
Fahrenheit to Rankine is actually the simplest temperature conversion of all — just add 459.67:
Examples:
Both Fahrenheit and Rankine use the exact same degree size — 1°F change = 1°R change. The only difference is their starting point (zero point). Fahrenheit's zero is arbitrary, while Rankine's zero is absolute zero (-459.67°F). So you just shift the scale by adding 459.67.
This is similar to how Celsius and Kelvin relate: K = °C + 273.15. Both pairs share degree sizes but have different zero points.
Rankine (°R) is an absolute temperature scale proposed by Scottish engineer William John Macquorn Rankine in 1859. It starts at absolute zero — the coldest possible temperature in the universe. Unlike Kelvin which pairs with Celsius, Rankine pairs with Fahrenheit, using the same degree size.
Rankine is mainly used in US engineering thermodynamics, particularly in aerospace, HVAC, and steam power systems. The famous Rankine Cycle — used in steam turbines and power plants — is named after the same scientist.
Fahrenheit (°F) was developed by German physicist Daniel Gabriel Fahrenheit in 1724. It is the primary temperature scale used in the United States for everyday life. Water freezes at 32°F and boils at 212°F. Normal human body temperature is 98.6°F.
| Fahrenheit (°F) | Rankine (°R) | Reference Point |
|---|---|---|
| -459.67 °F | 0 °R | Absolute zero |
| -40 °F | 419.67 °R | Equal point of °F and °C |
| 0 °F | 459.67 °R | Fahrenheit zero point |
| 32 °F | 491.67 °R | Freezing point of water |
| 68 °F | 527.67 °R | Room temperature |
| 98.6 °F | 558.27 °R | Normal body temperature |
| 100 °F | 559.67 °R | Mild fever |
| 212 °F | 671.67 °R | Boiling point of water |
| 350 °F | 809.67 °R | Oven baking temperature |
| 1000 °F | 1459.67 °R | Industrial furnace |
| Feature | Rankine (°R) | Kelvin (K) |
|---|---|---|
| Pairs with | Fahrenheit | Celsius |
| Degree size | Same as °F | Same as °C |
| Absolute zero | 0 °R | 0 K |
| Freezing point of water | 491.67 °R | 273.15 K |
| Boiling point of water | 671.67 °R | 373.15 K |
| Used in | US Engineering | Science worldwide |
| Relation | °R = K × 1.8 | K = °R × 5/9 |
The formula is extremely simple: °R = °F + 459.67. Just add 459.67 to any Fahrenheit value to get Rankine.
32°F = 491.67°R. This is the freezing point of water. Formula: 32 + 459.67 = 491.67°R.
212°F = 671.67°R. This is the boiling point of water at sea level. Formula: 212 + 459.67 = 671.67°R.
98.6°F = 558.27°R. This is the normal human body temperature in Rankine. Formula: 98.6 + 459.67 = 558.27°R.
Absolute zero is 0°R = -459.67°F. This is why we add 459.67 when converting — it shifts the Fahrenheit scale to start at absolute zero.
Both use the same degree size, but Rankine starts at absolute zero (0°R = -459.67°F) while Fahrenheit is a relative scale. Rankine is used in engineering thermodynamics; Fahrenheit is used for everyday temperatures in the US.