Temperature Tool

Fahrenheit to Rankine Converter

R equals F plus four hundred fifty-nine point six seven.
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Fahrenheit (°F) → Rankine (°R)

529.67 °R

Also: 21.111111 °C Celsius · 294.26111 K Kelvin

Show Your Work

  1. 1. R = 70 + 459.67
  2. 2. R = 529.67°R
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About this conversion

Fahrenheit to Rankine is the simplest temperature conversion in the four-scale system: same degree size, just an offset. R = F + 459.67 shifts the Fahrenheit zero up to absolute zero (0 R = -459.67°F = -273.15°C).

Fahrenheit to Rankine Reference Table

Fahrenheit (°F)Rankine (°R)
-459.670
-200259.67
-100359.67
-40419.67
0459.67
32491.67
50509.67
70529.67
98.6558.27
100559.67
150609.67
200659.67
212671.67
300759.67
400859.67
500959.67
7501209.67
10001459.67
15001959.67
20002459.67

When to use Fahrenheit → Rankine

  • U.S. thermodynamic engineering needing absolute temperatures while keeping Fahrenheit-sized degrees
  • Steam-cycle, refrigeration, or gas-cycle analysis with U.S. customary units throughout
  • Calculating ideal-gas relationships when source data is already in Fahrenheit

Worked Example

A gas is at 70°F. What is that in Rankine?

  1. Start with the Fahrenheit value: F = 70.
  2. Add 459.67: 70 + 459.67 = 529.67.
  3. So 70°F = 529.67°R.

Frequently Asked Questions

What is the formula to convert Fahrenheit to Rankine?

R = F + 459.67. The two scales share the same degree size, so the conversion is a single offset that places the zero at absolute zero.

What is 32°F in Rankine?

32°F = 491.67°R. The freezing point of water on the absolute Fahrenheit scale.

What is 0°F in Rankine?

0°F = 459.67°R. The Fahrenheit zero shifted to the absolute scale.

Why isn't there a multiplication step?

Fahrenheit and Rankine were designed with the same degree increment. Only Celsius and Kelvin share their step size with each other; F ↔ R and C ↔ K are pure offsets, while any cross-system conversion (F ↔ K, C ↔ R, etc.) needs both an offset and a 9/5 or 5/9 scaling.

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