70°F is equal to 519.67 Rankine
Converting 70 degrees Fahrenheit to Rankine results in approximately 519.67 Rankine. The Rankine scale starts at absolute zero and increases the same way Fahrenheit does, making conversion straightforward by adding 459.67 to the Fahrenheit temperature.
Table of Contents
To convert Fahrenheit to Rankine, you simply add 459.67 to the Fahrenheit temperature. Since the Rankine scale is an absolute temperature scale that begins at absolute zero, which is -459.67°F, this addition shifts the Fahrenheit reading to an absolute scale. For example, 70°F plus 459.67 gives 519.67 Rankine, giving a direct and easy way to switch between these scales for thermodynamic calculations or temperature comparisons.
Conversion Tool
Result in rankine:
Conversion Formula
The conversion from Fahrenheit to Rankine involves adding 459.67 to the Fahrenheit temperature because Rankine is an absolute scale starting at absolute zero (-459.67°F). This formula works because the Fahrenheit and Rankine scales increase at the same rate, only shifted by this constant.
For example, if you want to convert 80°F to Rankine, you perform 80 + 459.67 = 539.67°R. The step-by-step math confirms that every degree Fahrenheit corresponds to an equal increase in Rankine, just offset by 459.67 to account for the zero point shift.
Conversion Example
- Convert 50°F:
- Step 1: Take the Fahrenheit value, 50.
- Step 2: Add 459.67 to 50, resulting in 509.67 Rankine.
- Step 3: The answer is 509.67°R.
- Convert 100°F:
- Step 1: Take 100°F.
- Step 2: Add 459.67, resulting in 559.67 Rankine.
- Step 3: The answer is 559.67°R.
- Convert 32°F:
- Step 1: Take 32°F.
- Step 2: Add 459.67, resulting in 491.67 Rankine.
- Step 3: The answer is 491.67°R.
- Convert 212°F:
- Step 1: Take 212°F.
- Step 2: Add 459.67, resulting in 671.67 Rankine.
- Step 3: The answer is 671.67°R.
- Convert -40°F:
- Step 1: Take -40°F.
- Step 2: Add 459.67, resulting in 419.67 Rankine.
- Step 3: The answer 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 |
Use this chart to quickly see conversions for common Fahrenheit values. Find your temperature in the first column, then read across to find its Rankine equivalent.
Related Conversion Questions
- How many Rankine degrees are equivalent to 70°F?
- What is the Rankine temperature for 70 degrees Fahrenheit?
- Convert 70°F to an absolute temperature scale, what do I get?
- Why do I add 459.67 to Fahrenheit to get Rankine?
- What is the formula for turning Fahrenheit into Rankine?
- Is Rankine or Fahrenheit used more in thermodynamics?
- What other temperature scales are related to Fahrenheit and Rankine?
Conversion Definitions
Fahrenheit (f)
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 is mainly used in the United States for everyday temperature measurements.
Rankine (r)
Rankine is an absolute temperature scale originating from Fahrenheit, starting at absolute zero (-459.67°F). Its increments match Fahrenheit’s, making it suitable for thermodynamic calculations where absolute temperature measurements are necessary.
Conversion FAQs
Why is Rankine preferred for thermodynamic calculations over Fahrenheit?
Rankine is preferred in thermodynamics because it measures absolute temperature starting at absolute zero, allowing direct calculations involving energy and entropy. Fahrenheit, being a relative scale, isn’t suitable for these precise scientific purposes.
Can I convert Fahrenheit to Rankine without adding 459.67?
No, because the zero point of Fahrenheit is not at absolute zero. Adding 459.67 aligns Fahrenheit with the absolute scale, making the conversion accurate and meaningful for scientific calculations involving absolute temperatures.
What happens if I subtract 459.67 from Rankine?
Subtracting 459.67 from a Rankine temperature gives Fahrenheit. This is the inverse of the original conversion, restoring the scale to relative Fahrenheit degrees based on water’s freezing point.