🌡️ Temperature Converter

Fahrenheit to Rankine
( °F → °R )

Instantly convert Fahrenheit to Rankine. Enter any value below and get an accurate result with the full formula and reference table.

Converter Tool
°F
°R
Result
32°F = 491.67°R
491.67
°R
The Formula
°R = °F + 459.67
Add 459.67 to the Fahrenheit temperature.

How to Convert Fahrenheit to Rankine

To convert Fahrenheit to Rankine, simply add 459.67 to the Fahrenheit temperature. This is because 0°R (absolute zero) equals -459.67°F, and the Rankine scale has the same degree size as Fahrenheit.

Step-by-Step Example

Let’s convert 68°F to Rankine:

1. Add 459.67: 68 + 459.67 = 527.67
2. So 68°F equals 527.67°R.

Another common example: 212°F (boiling point of water) → 212 + 459.67 = 671.67°R.

Note on Absolute Zero

Absolute zero is 0°R = -459.67°F. The Rankine scale is an absolute temperature scale used mainly in engineering thermodynamics, particularly in the United States.

When You’d Use Each Unit

Fahrenheit is used for everyday temperatures in the U.S. Rankine is used in some engineering fields, especially when working with Fahrenheit-based absolute temperature calculations. Converting between them is straightforward.

Conversion Table

Common Fahrenheit values converted to Rankine — typical values highlighted.

Fahrenheit (°F) Rankine (°R) Approximate
Frequently Asked Questions
How do I convert Fahrenheit to Rankine quickly? +
Add 459.67. For a rough estimate, add 460.
What is 32°F in Rankine? +
32°F = 491.67°R.
What is 212°F in Rankine? +
212°F = 671.67°R.
What is -40°F in Rankine? +
-40°F = -40 + 459.67 = 419.67°R.
What is absolute zero in Fahrenheit? +
Absolute zero is 0°R = -459.67°F.
Can I convert Rankine back to Fahrenheit with this tool? +
Yes! Just type a value into the Rankine field and the Fahrenheit field updates automatically. Or use the ⇄ swap button to switch directions.
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