What is Fahrenheit to Rankine Conversion?

Converting Fahrenheit to Rankine is the simplest temperature conversion—just add 459.67. Both scales use the same degree size; they only differ in their zero points.

The Simplest Conversion

Unlike other temperature conversions that involve multiplication, Fahrenheit to Rankine is straightforward: °R = °F + 459.67. This works because:

Rankine and Fahrenheit degrees are exactly the same size
Absolute zero is -459.67°F, which equals 0°R
Adding 459.67 shifts the scale to start at absolute zero

Common Temperature Examples

0°F = 459.67°R
32°F = 491.67°R (freezing point)
70°F = 529.67°R (room temperature)
212°F = 671.67°R (boiling point)

When This Conversion is Useful

Rankine is used in some engineering and thermodynamics contexts that require absolute temperatures while working with US customary units.

How to Use the Fahrenheit to Rankine Converter

Easy Steps

Enter Fahrenheit value - Type your temperature reading
Read Rankine result - See the absolute temperature
Copy if needed - Use the copy button to save the result

Common Temperature Conversions

-40°F = 419.67°R - Very cold
0°F = 459.67°R - Cold weather
32°F = 491.67°R - Freezing point
70°F = 529.67°R - Room temperature
98.6°F = 558.27°R - Body temperature
212°F = 671.67°R - Boiling point

Mental Math Shortcut

For quick estimates, add 460 instead of 459.67. So 70°F ≈ 530°R (exact: 529.67°R). Close enough for most purposes!

Understanding the Result

Rankine values are always positive. Room temperature is around 530°R, and everyday temperatures typically range from 460-600°R.

Converter Features

Simple and Accurate

The converter uses the exact offset of 459.67, providing precise results. Though the formula is simple enough for mental math, the converter ensures accuracy.

Useful Reference Points

Quick reference shows common temperatures:

32°F = 491.67°R - Freezing point
70°F = 529.67°R - Room temperature
98.6°F = 558.27°R - Body temperature
212°F = 671.67°R - Boiling point

Instant Updates

Results appear as you type, making it easy to convert multiple temperatures quickly.

Two-Way Conversion

Use the swap button to convert Rankine back to Fahrenheit—just as simple (subtract 459.67).

Copy Function

One-click copy puts the Rankine value on your clipboard for use in other applications.

Frequently Asked Questions

What is the formula to convert Fahrenheit to Rankine?

Simply add 459.67: °R = °F + 459.67. This is the easiest temperature conversion because both scales use the same degree size.

Why is the offset 459.67?

Absolute zero is -459.67°F. Adding 459.67 shifts the zero point from -459.67°F to 0°R, creating an absolute scale.

Can I just add 460 for a quick estimate?

Yes, adding 460 gives a close approximation. The exact offset is 459.67, so you'll be within 0.33°R—close enough for most practical purposes.

Is room temperature about 530°R?

Yes, typical room temperature of 70°F equals 529.67°R, which rounds to about 530°R.

What is the relationship between Fahrenheit and Rankine degrees?

They are exactly the same size. A 1-degree change in Fahrenheit equals a 1-degree change in Rankine. They only differ in where zero is defined.

When would I need Rankine?

Rankine is used in some engineering and thermodynamics contexts, particularly in problems involving absolute temperatures with US customary units.

Fahrenheit to Rankine