Fahrenheit to Rankine Converter
Enter the value that you want to convert Fahrenheit (°F) to Rankine (°R) or Rankine to Fahrenheit.Also written as °F to °R conversion.
1 Fahrenheit = 460.6700000 Rankine
Formula: °R = °F + 459.67
°F to °R — Fahrenheit to Rankine
10 Fahrenheit = 469.67000 Rankine
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Fahrenheit vs Rankine
What is Fahrenheit?
Daniel Gabriel Fahrenheit developed this scale in 1724, setting 0°F as the temperature of a brine solution and 96°F as human body temperature.
Fahrenheit (°F) remains the primary temperature scale in the United States, the Bahamas, and a few other countries. Water freezes at 32°F and boils at 212°F. Americans use it for weather reports, cooking (oven temperatures: 350°F, 400°F, 450°F), thermostat settings, and body temperature (98.6°F normal). The scale offers finer resolution for weather — the 0-100°F range covers most human-habitable temperatures.
The Rankine Explained
The Rankine scale is the Fahrenheit-based absolute temperature scale, starting at absolute zero (0°R = −459.67°F).
Developed by Scottish engineer William Rankine in 1859, the Rankine scale (°R) is used primarily in American engineering for thermodynamic calculations. It relates to Fahrenheit as Kelvin relates to Celsius — same degree size but offset to absolute zero. The Rankine cycle (steam power plant efficiency) and some US aerospace engineering calculations use this scale. To convert: °R = °F + 459.67.
Temperature Scales in Context
Temperature conversion is one of the few non-linear unit conversions people encounter daily. Celsius dominates scientific work and most countries, Fahrenheit remains standard in the US for weather and cooking, Kelvin is required in thermodynamics and gas law calculations, and Rankine appears in some US engineering applications. Converting between these scales requires formulas rather than simple multiplication.
Fahrenheit to Rankine metric conversion table
| 0.01 °F | = | 459.68000 °R |
| 0.1 °F | = | 459.77000 °R |
| 1 °F | = | 460.67000 °R |
| 2 °F | = | 461.67000 °R |
| 3 °F | = | 462.67000 °R |
| 4 °F | = | 463.67000 °R |
| 5 °F | = | 464.67000 °R |
| 6 °F | = | 465.67000 °R |
| 7 °F | = | 466.67000 °R |
| 8 °F | = | 467.67000 °R |
| 9 °F | = | 468.67000 °R |
| 10 °F | = | 469.67000 °R |
| 11 °F | = | 470.67000 °R |
| 12 °F | = | 471.67000 °R |
| 13 °F | = | 472.67000 °R |
| 14 °F | = | 473.67000 °R |
| 15 °F | = | 474.67000 °R |
| 16 °F | = | 475.67000 °R |
| 17 °F | = | 476.67000 °R |
| 18 °F | = | 477.67000 °R |
| 19 °F | = | 478.67000 °R |
| 20 °F | = | 479.67000 °R |
| 30 °F | = | 489.67000 °R |
| 40 °F | = | 499.67000 °R |
| 50 °F | = | 509.67000 °R |
| 60 °F | = | 519.67000 °R |
| 70 °F | = | 529.67000 °R |
| 80 °F | = | 539.67000 °R |
| 90 °F | = | 549.67000 °R |
| 100 °F | = | 559.67000 °R |
| 200 °F | = | 659.67000 °R |
| 300 °F | = | 759.67000 °R |
| 400 °F | = | 859.67000 °R |
| 500 °F | = | 959.67000 °R |
| 600 °F | = | 1059.67000 °R |
| 700 °F | = | 1159.67000 °R |
| 800 °F | = | 1259.67000 °R |
| 900 °F | = | 1359.67000 °R |
| 1000 °F | = | 1459.67000 °R |
How to Convert °F to °R (Fahrenheit to Rankine)?
We can convert Fahrenheit to Rankine by using an example.
Example:
Convert 20 Fahrenheit to Rankine?
We know 1 Fahrenheit = 460.6700000 Rankine; 1 Rankine = -458.6700000 Fahrenheit.
20 Fahrenheit = ___°R
20 × 460.6700000 = 479.67000 °R (we know 1 Fahrenheit = 460.6700000 Rankine)
Answer:
20 Fahrenheit = 479.67000 Rankine
Fahrenheit to Rankine: The Simplest Absolute Conversion
Just add 459.67 — that's it! Rankine uses the same degree size as Fahrenheit:
- Write down the Fahrenheit temperature.
- Add 459.67.
- The result is Rankine.
Solved Examples
Question 1: Convert 72°F (room temp) to Rankine.
Solution:
°R = °F + 459.67
= 72 + 459.67
Answer: 72°F = 531.67°R
Question 2: Convert 0°F to Rankine.
Solution:
°R = 0 + 459.67
Answer: 0°F = 459.67°R
Question 3: Convert -459.67°F to Rankine.
Solution:
°R = -459.67 + 459.67
Answer: -459.67°F = 0°R (absolute zero)
Practice Questions
Try solving these on your own to test your understanding:
- Convert 32°F to Rankine. (Answer: 491.67°R)
- Convert 212°F to Rankine. (Answer: 671.67°R)
- What is -40°F in Rankine? (Answer: 419.67°R)
Why Rankine Exists
Rankine is to Fahrenheit what Kelvin is to Celsius — an absolute scale starting at 0 for absolute zero. William Rankine created it in 1859 for thermodynamic calculations in the British/American engineering system. While Kelvin dominates globally, Rankine persists in US-published engineering data, particularly in steam tables, HVAC calculations, and petroleum engineering where BTU-based calculations use °R.
Key Takeaways
- °R = °F + 459.67 (just add).
- 1 Rankine degree = 1 Fahrenheit degree (same size).
- 32°F = 491.67°R (water freezes).
- Absolute zero = 0°R = -459.67°F.
Fahrenheit to Rankine Conversion Formula
°R = °F + 459.67
1 Fahrenheit = 460.6700000 Rankine
1 Rankine = -458.6700000 Fahrenheit
Frequently Asked Questions
How many Rankine are in 1 Fahrenheit?
1 Fahrenheit equals 460.67000 Rankine. Note: Temperature conversion uses a formula, not simple multiplication.
How do I convert Fahrenheit to Rankine?
Use the conversion formula shown above. For example, 464.67 Rankine equals 5 Fahrenheit. Temperature scales have different zero points, so a formula (not simple multiplication) is required.
How do I convert Rankine to Fahrenheit?
Use the reverse formula. 1 Rankine equals -458.67000 Fahrenheit. See the formula section above for the exact equation.
What is 10 Fahrenheit in Rankine?
10 Fahrenheit is equal to 469.67000 Rankine.
What is 100 Fahrenheit in Rankine?
100 Fahrenheit is equal to 559.67000 Rankine.