A very simple temperature converter and follow up to Temperature Conversion.
This app converts an input temperature from Fahrenheit, Celsius, Kelvin, Rankine, Romer, Newton, Delisle or Reaumur.
When a temperature is converted, you can change the temperature that you are converting from by selecting any other temperature. That is, if you input a temperature, 0, and you meant to convert from Kelvin and you hit Celsius, you can just click on the Kelvin button and it will update all of the conversions.
When converting from a temperature, the button will remain "From..." and the other buttons will change to their respective converted temperature.
If a button is "grayed out" it is either due to an input limitation (e.g. negative Kelvin temperature) or because that is the button pressed as the input temperature. You can click another button or the input box at any time. Clicking the input box will reset everything.
This application runs in portrait mode only.