Convert Rankine to Celsius
Use this free converter to change rankine (°R) into celsius (°C). Rankine and celsius both measure temperature. As a quick reference, 1 °R equals -272.59444 °C, and 1 °C equals 493.47 °R.
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Celsius (°C)
-272.59444
1 °R = -272.59444 °C
Temperature conversion table
| Rankine | Celsius |
|---|---|
| 0.01 | -273.14444 |
| 0.1 | -273.09444 |
| 0.5 | -272.87222 |
| 1 | -272.59444 |
| 2 | -272.03889 |
| 3 | -271.48333 |
| 5 | -270.37222 |
| 10 | -267.59444 |
| 20 | -262.03889 |
| 25 | -259.26111 |
| 50 | -245.37222 |
| 100 | -217.59444 |
| 1,000 | 282.40556 |
How to convert Rankine to Celsius
Apply the Rankine-to-Celsius temperature formula.
- Enter the number of rankine you want to convert.
- The converter instantly shows the equivalent value in celsius.
- For example, 25 °R = -259.26111 °C using the formula above.
- Use the swap button to reverse the conversion (celsius 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.
Celsius (°C)
- Definition
- The degree Celsius (°C) is a metric temperature unit where water freezes at 0° and boils at 100° at standard pressure.
- History
- Proposed by Swedish astronomer Anders Celsius in 1742 (originally inverted), the scale was later flipped to its modern form.
- Current use
- Celsius is the everyday temperature scale across most of the world for weather, cooking, and medicine.
Frequently asked questions
How many celsius are in a rankine?
There are -272.59444 °C in 1 °R. To convert, apply the temperature formula shown above.
How do I convert rankine to celsius?
Apply the Rankine-to-Celsius temperature formula. For example, 10 °R = -267.59444 °C.
Is this rankine-to-celsius 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 |