Three current-carrying conductors are permitted in a single 3/4-inch electrical conduit. You can find all the detailed information about how many current carrying conductors in a 3/4 conduit in our content. If you wish, you can also visit our links below.
This calculator will determine how many current carrying conductors and/or what size individual conductors will fit in your conduit.
Site:
https://www.southwire.com/tools-resources/calculators/conduit-fill-calculator