In 1 fahrenheit there are 460.67 rankine. Meanwhile in 1 rankine there are -458.67 fahrenheit. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Rankine to Fahrenheit calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert Fahrenheit to Rankine, add 459.67 to the Fahrenheit value.
Example:
Use this conversion when you need absolute temperature in Rankine (°R), often in engineering and thermodynamics.
Fahrenheit (°F) and Rankine (°R) are both temperature scales that use the same degree size. The key difference is the starting point. Rankine starts at absolute zero, while Fahrenheit does not. This makes Rankine an absolute temperature scale.
To convert Fahrenheit to Rankine, add 459.67 to the Fahrenheit value.
Formula:
°R = °F + 459.67
Example: 70°F becomes 529.67°R.
459.67 is the offset between the Fahrenheit zero point and absolute zero. Absolute zero is the lowest possible temperature. On the Fahrenheit scale, absolute zero equals -459.67°F. Adding 459.67 shifts Fahrenheit readings onto the absolute Rankine scale.
Absolute zero is:
At this point, thermal motion is at its minimum level.
Rankine and Kelvin are both absolute temperature scales, but they use different degree sizes.
The relationship between them is:
°R = K × 1.8
K = °R ÷ 1.8
Yes. A change of 1°F equals a change of 1°R. Only the zero point changes between the scales. This is why converting between them uses only addition or subtraction, not scaling.
To convert Rankine to Fahrenheit, subtract 459.67.
Formula:
°F = °R - 459.67
Example: 540°R becomes 80.33°F.
No. Rankine is an absolute temperature scale, so it can’t go below 0°R. If a Fahrenheit value is below -459.67°F, it would convert to a negative Rankine value, but that temperature is not physically possible.
Here are a few quick reference points:
Rankine is used most often in some engineering fields, mainly in the United States. It shows up in thermodynamics and gas law work where absolute temperature is needed, but Fahrenheit-sized degrees are preferred.
No. Temperature differences stay the same because the degree size is the same.
Example:
If one reading is 50°F and another is 60°F, the difference is 10°F.
In Rankine, that’s 509.67°R and 519.67°R, also a difference of 10°R.
For a quick estimate, add about 460 to the Fahrenheit value. This gives a close result for everyday use.
Example: 77°F + 460 ≈ 537°R (exact is 536.67°R).
The most common mistake is using 459.67 as a multiplier. It’s not a multiplier. It’s an offset. You add 459.67 to convert °F to °R, and subtract 459.67 to convert back.
The Calculate Box tool to convert fahrenheit to rankine uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a fahrenheit value in the box and have it instantly converted to rankine.