How does one convert oz/ft2 into mils as it relates to the thickness of
copper on a PCB?

The other day, a question was asked about calculating trace width for a
given current, etc... And one of the sites that came up as an answer belongs
to an ex-piclister who gave me permission to copy his trace with calculation
javascript. I wanted to make some minor changes to it (temperatures in F as
well as C) and feature creep led me to want to automatically convert the C
value to F and back as the units were changed which then led to me wanting
to add that feature for the other unit selectable fields, one of which is
oz/ft2 or mils for copper thickness.

But Google doesn't seem to know how to do that conversion. Any ideas? I seem
to be too stupid to figure it out today.

BTW the new page is at
http://www.piclist.com/techref/pcb_traces.htm

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