As a part of rebuilding the alternator/negative battery cable harness I want to replace the junk battery terminal. Factory configuration has 3 leads coming out of it.

10 gauge lead that splices into grounds for the computer
8 gauge going directly to body ground.
6 gauge ground that goes to the alternator, a/c comp, cylinder head.

Delcity has these really nice tinned solid copper battery terminals that crimp or solder on link here that closely match the original terminal in appearence and function.

My question is. what would 10 gauge, 8 gauge and 6 gauge wires equal/add up to ? so I dont order a terminal thats going to be way to big or way to small for those wires to fit into it.

Thanks!