Choose an input scale and an output scale, then convert Fahrenheit, Celsius, or Kelvin.
Temperature conversion changes a value between Fahrenheit, Celsius, and Kelvin. The constants 32, 5/9, 9/5, and 273.15 define the offsets and scale ratios between these temperature scales.
Use the selector pair to convert a charted or measured temperature into the desired scale.
The reference uses K = °C + 273 for practical conversion.