How to Convert Rankine to Kelvin (°R to K)
Temperature conversions help with American oven recipes in Fahrenheit, weather apps set to the wrong unit, and science homework that uses kelvin. This guide shows how to convert rankine into kelvin by hand, with examples and a quick-reference table.
The conversion
Temperature scales have different zero points, so you cannot use a single multiplier. Convert through kelvin: °R converted through kelvin: ((°R*5/9)).
°R converted through kelvin: ((°R*5/9))
Worked examples
- 15 °R = 8.3333 K
- 32 °R = 17.7778 K
- 100 °R = 55.5556 K
Rankine to Kelvin table
| Rankine | Kelvin |
|---|---|
| -40 °R | -22.2222 K |
| -10 °R | -5.5556 K |
| 0 °R | 0 K |
| 10 °R | 5.5556 K |
| 20 °R | 11.1111 K |
| 25 °R | 13.8889 K |
| 30 °R | 16.6667 K |
| 37 °R | 20.5556 K |
| 50 °R | 27.7778 K |
| 100 °R | 55.5556 K |
| 200 °R | 111.1111 K |
Common questions
Is °R to K exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Kelvin to Rankine converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
For any value, use the Rankine to Kelvin Converter or browse all temperature converters.
Run your own numbers: Rankine to Kelvin Converter