You do not need “click” … write “your value” to read what is the same.
Do you have an old reloading manual and do not know how to convert the values?
Or, more likely, sitting there with the calculator in your hands becomes long and boring?
There is nothing simpler… write the speed into the Form that interests you and you will automatically get the respective conversions.
For decimal values use the “dot”, NOT the “comma”.
For this simple script we thank Bill St. Clair – Copyright © 2003 / 2017