The converted value of 70 degrees Fahrenheit to Rankine is 518.0 R.
To convert Fahrenheit to Rankine, you simply add 459.67 to the Fahrenheit temperature. Since Rankine starts at absolute zero like Kelvin but uses Fahrenheit units, this addition shifts the scale to absolute points. For 70°F, adding 459.67 gives the Rankine value.
Conversion Result
Result in rankine:
Conversion Formula
The formula to convert Fahrenheit (°F) to Rankine (°R) is R = F + 459.67. This works because Rankine starts at absolute zero, which is -459.67°F. So, adding 459.67 to any Fahrenheit temperature shifts it to an absolute scale based on Fahrenheit units. For example, 70°F + 459.67 = 518.67°R.
Conversion Example
- Convert 32°F to Rankine:
- Step 1: Take the Fahrenheit temperature, which is 32°F.
- Step 2: Add 459.67 to 32: 32 + 459.67 = 491.67.
- Step 3: The Rankine equivalent is 491.67°R.
- Convert 100°F to Rankine:
- Step 1: 100°F.
- Step 2: 100 + 459.67 = 559.67.
- Step 3: Rankine value is 559.67°R.
- Convert -40°F to Rankine:
- Step 1: -40°F.
- Step 2: -40 + 459.67 = 419.67.
- Step 3: The Rankine temperature is 419.67°R.
Conversion Chart
| Fahrenheit (°F) | Rankine (°R) |
|---|---|
| 45.0 | 504.67 |
| 50.0 | 509.67 |
| 55.0 | 514.67 |
| 60.0 | 519.67 |
| 65.0 | 524.67 |
| 70.0 | 529.67 |
| 75.0 | 534.67 |
| 80.0 | 539.67 |
| 85.0 | 544.67 |
| 90.0 | 549.67 |
| 95.0 | 554.67 |
This chart helps you see what the Rankine equivalent is for Fahrenheit temperatures from 45°F to 95°F. Simply find the Fahrenheit value in the first column and read across to see the Rankine value.
Related Conversion Questions
- What is 70 degrees Fahrenheit in Rankine and how does it compare to Kelvin?
- How do I convert 70°F to Rankine manually without a calculator?
- What is the Rankine temperature for 70°F during a heatwave?
- Is 70°F warmer or colder than 518 R?
- How does 70°F in Rankine relate to absolute zero?
- Why do I need to convert Fahrenheit to Rankine in thermodynamics?
Conversion Definitions
Fahrenheit
Fahrenheit is a temperature scale where 32°F is the freezing point of water and 212°F is boiling point at standard atmospheric pressure, with 180 degrees between them. It’s mainly used in the US for weather and everyday temperature reporting.
Rankine
Rankine is an absolute temperature scale starting at absolute zero, like Kelvin, but uses Fahrenheit units. Zero Rankine equals -459.67°F, and it increases by 1 degree Rankine for each degree Fahrenheit. It’s used primarily in thermodynamics calculations involving Fahrenheit.
Conversion FAQs
What is the significance of adding 459.67 in the Fahrenheit to Rankine conversion?
This addition shifts the scale to absolute zero, converting Fahrenheit, which is relative to the freezing point of water, to an absolute scale starting at absolute zero. It ensures that Rankine measures the total thermal energy content.
Can I convert Fahrenheit to Rankine with a simple calculator addition?
Yes, because the formula is straightforward: add 459.67 to the Fahrenheit temperature. This makes it easy for quick conversions without complex calculations, useful for engineering and scientific tasks.
Why is Rankine preferred in some thermodynamic equations instead of Kelvin?
In systems where Fahrenheit is standard, Rankine allows calculations to stay consistent with existing Fahrenheit-based measurements. It simplifies temperature difference calculations in Fahrenheit units and avoids conversion complications.
What happens if I convert below -459.67°F?
Temperatures below -459.67°F are physically impossible because that’s absolute zero. Any temperature reading below that is invalid, indicating the measurement error or device malfunction.