Kelvin to Rankine Converter
Convert absolute temperatures from Kelvin to degrees Rankine instantly. The calculator multiplies the Kelvin value by 1.8, matching the relationship between Celsius and Fahrenheit degree sizes while anchoring both scales at absolute zero.
Verify critical temperature conversions with official sources.
Examples
- Standard freezing point: 273.15 K converts to 491.67 °R.
- Industrial furnace setpoint: 1,200 K equals 2,160 °R.
- Cryogenic storage: 90 K becomes 162 °R.
FAQ
What is the Rankine scale?
A temperature scale used in engineering, similar to Kelvin but measured in Fahrenheit-sized degrees.
Can Kelvin be negative?
No, Kelvin starts at absolute zero.
How do I convert Rankine back to Kelvin?
Divide Rankine by 1.8.
Is Rankine commonly used?
It's mainly used in certain engineering fields in the United States.
Why would I prefer Rankine over Fahrenheit?
Rankine aligns directly with Kelvin, making it easier to plug into thermodynamic formulas that require absolute temperatures while retaining Fahrenheit-sized degree increments familiar to U.S. engineers.
Additional Information
- Rankine degrees are the same size as Fahrenheit degrees but start from absolute zero instead of water's freezing point.
- Both Kelvin and Rankine are absolute temperature scales commonly used in thermodynamics and gas law equations.
- To reverse the process, divide degrees Rankine by 1.8 to recover Kelvin.
Remember the kelvin foundation
Switching between absolute scales is easier when you revisit the kelvin base unit guide for context on the Boltzmann constant and ITS-90 dissemination methods referenced in ISO 80000-5.