I'm new to this, but have spent the morning looking for an app for electrical calculations, such as wire size when distance and load are known, conduit sizing, etc. So far every one I have looked at either are for only 120 volts or higher, or use a lot more personal info than I am comfortable sharing, or are real awkward to use. I don't need to design electronic circuits, but mostly am using it for solar electric wire sizing for various voltages. Any suggestions?? Thanks for the help.