0 degrees Fahrenheit equals 459.67 degrees Rankine.
The conversion from Fahrenheit to Rankine involves adding 459.67 to the Fahrenheit temperature. This is because the Rankine scale starts absolute zero at 0 degrees, just like Kelvin, but uses Fahrenheit-sized degrees. So, 0°F plus 459.67 gives the Rankine equivalent.
Conversion Tool
Result in rankine:
Conversion Formula
The formula to convert Fahrenheit (°F) to Rankine (°R) is:
°R = °F + 459.67
This formula works because the Rankine scale is an absolute temperature scale that uses Fahrenheit degree increments, but starts at absolute zero, which is -459.67°F. Adding 459.67 shifts the Fahrenheit temperature up to the Rankine scale.
Example calculation for 0°F:
- Start with 0°F
- Add 459.67 to 0
- 0 + 459.67 = 459.67°R
Conversion Example
- Convert 32°F to Rankine:
- Start with 32°F
- Add 459.67: 32 + 459.67 = 491.67°R
- Result: 491.67 Rankine
- Convert -40°F to Rankine:
- Start with -40°F
- Add 459.67: -40 + 459.67 = 419.67°R
- Result: 419.67 Rankine
- Convert 100°F to Rankine:
- Start with 100°F
- Add 459.67: 100 + 459.67 = 559.67°R
- Result: 559.67 Rankine
- Convert -10°F to Rankine:
- Start with -10°F
- Add 459.67: -10 + 459.67 = 449.67°R
- Result: 449.67 Rankine
Conversion Chart
This table shows Fahrenheit temperatures from -25.0 to 25.0 degrees and their Rankine equivalents. You can find the corresponding Rankine value by adding 459.67 to the Fahrenheit number.
| Fahrenheit (°F) | Rankine (°R) |
|---|---|
| -25.0 | 434.67 |
| -20.0 | 439.67 |
| -15.0 | 444.67 |
| -10.0 | 449.67 |
| -5.0 | 454.67 |
| 0.0 | 459.67 |
| 5.0 | 464.67 |
| 10.0 | 469.67 |
| 15.0 | 474.67 |
| 20.0 | 479.67 |
| 25.0 | 484.67 |
Related Conversion Questions
- How many degrees Rankine equals 0 Fahrenheit?
- What is the Rankine temperature when Fahrenheit reads zero?
- How to convert 0°F into Rankine scale without a calculator?
- Does 0°F correspond to a higher or lower Rankine value?
- What formula do I use to translate 0°F into Rankine?
- Is Rankine always larger than Fahrenheit for the same temperature?
- What rankine value matches freezing point in Fahrenheit at zero?
Conversion Definitions
Fahrenheit: Fahrenheit is a temperature scale used mainly in the United States, where water freezes at 32 degrees and boils at 212 degrees under standard atmospheric pressure. It divides the temperature scale into increments called degrees Fahrenheit, commonly used for weather and cooking measurements.
Rankine: Rankine is an absolute temperature scale used in engineering fields, especially thermodynamics in the U.S. It starts at absolute zero (0°R), the lowest possible temperature, and increments in degrees equal in size to Fahrenheit. Rankine is useful for calculations involving heat and energy.
Conversion FAQs
Why does the Rankine scale add 459.67 to Fahrenheit values?
Because Rankine is an absolute temperature scale like Kelvin, but uses Fahrenheit-sized increments. Absolute zero is -459.67°F, so adding 459.67 shifts the Fahrenheit scale to start at zero on Rankine, allowing absolute temperature measurements.
Can Rankine values be negative like Fahrenheit?
No, since Rankine starts at absolute zero (0°R), it cannot be negative. Temperatures below absolute zero do not exist physically, so Rankine values are always zero or positive, unlike Fahrenheit which can show negative numbers.
Is it possible to convert Rankine back to Fahrenheit?
Yes, by using the inverse formula: °F = °R – 459.67. You subtract 459.67 from the Rankine temperature to get Fahrenheit, reversing the conversion process.
Why use Rankine instead of Fahrenheit in some applications?
Rankine is preferred in thermodynamics and engineering calculations because it is an absolute scale starting at absolute zero. This allows for more accurate heat and energy computations, avoiding negative temperatures that can complicate formulas.
Does the Fahrenheit to Rankine conversion change if pressure varies?
No, temperature scales like Fahrenheit and Rankine are independent of pressure for conversion purposes. However, actual temperature measurements can vary with pressure, but the formula remains consistent.