I need to convert the FID to a number in field calculator.
FID = shapefile. OID = feature class.
Both are internally managed by ArcGIS, so you can't edit them. They are numbers by the way; you can add a long integer field and calc it to equal the FID or OID, but not the other way around.
Visuals for the solution Joe Borgione offered:
Chris Donohue, GISP
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