10 kelvin (K) equals 18.0 degree Rankine (°R). This conversion is done by multiplying the kelvin value by 1.8.
The kelvin and Rankine scales both measure absolute temperature, but kelvin uses Celsius degrees while Rankine uses Fahrenheit degrees. Since Fahrenheit degrees are 1.8 times larger than Celsius degrees, converting kelvin to Rankine requires multiplying by 1.8 to match the scale difference.
Conversion Tool
Result in rankine:
Conversion Formula
The formula to convert kelvin (K) to degree Rankine (°R) is:
°R = K × 1.8
This works because kelvin and Rankine are both absolute temperature scales, zeroing at absolute zero. However, kelvin increments correspond to Celsius degrees, and Rankine increments correspond to Fahrenheit degrees. Since each Fahrenheit degree equals 5/9 of a Celsius degree, or conversely, each Celsius degree equals 1.8 Fahrenheit degrees, multiplying kelvin values by 1.8 converts the scale properly.
Example calculation for 10 K:
- Start with 10 kelvin
- Multiply by 1.8 (because 1 K = 1.8 °R)
- 10 × 1.8 = 18 °R
Conversion Example
- Convert 25 K to Rankine:
- Start with 25 kelvin
- Multiply 25 by 1.8
- 25 × 1.8 = 45 °R
- Convert 0 K to Rankine:
- 0 kelvin means absolute zero
- 0 × 1.8 = 0 °R
- This confirms absolute zero is 0 in both scales
- Convert 100 K to Rankine:
- Take 100 kelvin
- Multiply by 1.8
- 100 × 1.8 = 180 °R
- Convert 5 K to Rankine:
- 5 kelvin multiplied by 1.8
- 5 × 1.8 = 9 °R
Conversion Chart
This chart shows kelvin values from -15.0 to 35.0 and their equivalent in Rankine. Negative kelvin values aren’t physically meaningful, but included here for computational completeness. To use, find the kelvin value in the left column and read across to see the Rankine equivalent.
| Kelvin (K) | Rankine (°R) |
|---|---|
| -15.0 | -27.0 |
| -10.0 | -18.0 |
| -5.0 | -9.0 |
| 0.0 | 0.0 |
| 5.0 | 9.0 |
| 10.0 | 18.0 |
| 15.0 | 27.0 |
| 20.0 | 36.0 |
| 25.0 | 45.0 |
| 30.0 | 54.0 |
| 35.0 | 63.0 |
Related Conversion Questions
- What is 10 kelvin in rankine temperature scale?
- How to convert 10 K to °R accurately?
- Is 10 kelvin equal to 18 rankine?
- What formula can I use for converting 10 kelvin into rankine?
- Why does 10 K multiplied by 1.8 give rankine degrees?
- Difference between 10 kelvin and 10 rankine?
- How many rankine degrees equal 10 kelvin?
Conversion Definitions
Kelvin (K): Kelvin is an absolute temperature scale used in science and engineering, starting from absolute zero, the lowest possible temperature. Each kelvin unit matches one degree Celsius, but kelvin does not use negative numbers, making it perfect for thermal measurements at very low temperatures.
Rankine (°R): Rankine is an absolute temperature scale used in some engineering fields, especially in the United States. It starts at absolute zero like kelvin, but increments in Fahrenheit degrees. Therefore, 1 degree Rankine equals 1 degree Fahrenheit, with zero Rankine at absolute zero.
Conversion FAQs
Can kelvin values be negative when converting to rankine?
Kelvin is an absolute scale, so negative kelvin values do not exist physically. However, mathematically you can multiply negative kelvin by 1.8 to get a negative rankine value, but this has no physical meaning because temperature cannot go below absolute zero.
Why multiply kelvin by 1.8 to get rankine?
Kelvin and Rankine both start at absolute zero but use different sized degrees. Kelvin degrees match Celsius, while Rankine degrees match Fahrenheit. Since Fahrenheit degrees are 1.8 times the size of Celsius degrees, multiplying kelvin by 1.8 converts the scale properly.
Is 0 K equal to 0 °R?
Yes, both kelvin and rankine scales start at absolute zero. 0 K equals 0 °R, representing the lowest temperature theoretically possible.
How precise is the conversion from kelvin to rankine?
Multiplying kelvin by 1.8 gives an exact conversion between the two scales because the ratio of degree sizes is constant. Minor rounding in practice comes from decimal places, not from the formula itself.
When is it necessary to convert kelvin to rankine?
Conversion is needed when working with thermodynamic equations or engineering problems where temperatures are given in kelvin but calculations or standards require rankine, often in US-based aerospace or mechanical engineering contexts.