In 1 rankine there are -458.67 fahrenheit. Meanwhile in 1 fahrenheit there are 460.67 rankine. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Fahrenheit to Rankine calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert Rankine (°R) to Fahrenheit (°F), subtract 459.67.
Example:
Use this Rankine to Fahrenheit conversion any time you need a quick, accurate temperature change between °R and °F.
Rankine (°R) and Fahrenheit (°F) use the same size degree. The only difference is where each scale starts. Rankine starts at absolute zero, while Fahrenheit sets 0°F at a chosen point on its scale.
Use this formula:
°F = °R - 459.67
Subtract 459.67 from the Rankine value to get Fahrenheit.
Rankine is an absolute temperature scale. Absolute zero is 0°R. On the Fahrenheit scale, absolute zero is -459.67°F. The 459.67 offset lines up the two scales.
Yes. A change of 1°R equals a change of 1°F. Only the starting points differ.
Use this formula:
°R = °F + 459.67
Add 459.67 to a Fahrenheit value to get Rankine.
0°R = -459.67°F
This is absolute zero, the lowest possible temperature.
491.67°R = 32°F
This is the freezing point of water at standard pressure.
671.67°R = 212°F
This is the boiling point of water at standard pressure.
Yes. Any Rankine value below 459.67°R converts to a negative Fahrenheit temperature. Example: 400°R = -59.67°F.
No. Rankine starts at absolute zero, so 0°R is the lowest value.
Rankine shows up most in some engineering work, mainly in thermodynamics. It’s useful when equations need an absolute temperature scale but still use Fahrenheit-sized degrees.
For most uses, round to 2 decimal places. For rough checks, rounding to a whole number often works. Keep more decimals when small differences matter in calculations.
Use a known point. If you convert 491.67°R, you should get 32°F. If that matches, your method is on track.
The most common errors are:
Rankine is often written as °R. Some fields also write it as R. Both refer to Rankine, but the degree symbol helps avoid confusion with other uses of “R.”
The Calculate Box tool to convert rankine to fahrenheit uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a rankine value in the box and have it instantly converted to fahrenheit.