Convert Rankine to Kelvin
Use this free converter to change rankine (°R) into kelvin (K). Rankine and kelvin both measure temperature. As a quick reference, 1 °R equals 0.55555556 K, and 1 K equals 1.8 °R.
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Kelvin (K)
0.55555556
1 °R = 0.55555556 K
Temperature conversion table
| Rankine | Kelvin |
|---|---|
| 0.01 | 0.0055555556 |
| 0.1 | 0.055555556 |
| 0.5 | 0.27777778 |
| 1 | 0.55555556 |
| 2 | 1.1111111 |
| 3 | 1.6666667 |
| 5 | 2.7777778 |
| 10 | 5.5555556 |
| 20 | 11.111111 |
| 25 | 13.888889 |
| 50 | 27.777778 |
| 100 | 55.555556 |
| 1,000 | 555.55556 |
How to convert Rankine to Kelvin
Apply the Rankine-to-Kelvin temperature formula.
- Enter the number of rankine you want to convert.
- The converter instantly shows the equivalent value in kelvin.
- For example, 25 °R = 13.888889 K using the formula above.
- Use the swap button to reverse the conversion (kelvin to rankine).
About these units
Rankine (°R)
- Definition
- The degree Rankine (°R) is an absolute temperature scale that uses Fahrenheit-sized degrees starting at absolute zero.
- History
- Proposed by Scottish engineer William Rankine in 1859 as the absolute counterpart to Fahrenheit.
- Current use
- Rankine appears in some US engineering and thermodynamics work, particularly in aerospace.
Kelvin (K)
- Definition
- The kelvin (K) is the SI base unit of temperature, starting at absolute zero with the same degree size as Celsius.
- History
- Proposed by William Thomson (Lord Kelvin) in 1848 and redefined in 2019 by fixing the Boltzmann constant.
- Current use
- Kelvin is used throughout science and engineering, especially in physics, chemistry, and astronomy.
Frequently asked questions
How many kelvin are in a rankine?
There are 0.55555556 K in 1 °R. To convert, apply the temperature formula shown above.
How do I convert rankine to kelvin?
Apply the Rankine-to-Kelvin temperature formula. For example, 10 °R = 5.5555556 K.
Is this rankine-to-kelvin converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Rankine to other temperature units
| Unit | 1 Rankine equals |
|---|---|
| Celsius (°C) | -272.59444 °C |
| Fahrenheit (°F) | -458.67 °F |
| Kelvin (K) | 0.55555556 K |