I assume he asks how much chin ups correspond to 5 sets of biceps curls with dumbels!

If he want to focus on getting a bigger biceps faster then he need to do biceps curls with dumbels and exercises which focus only on biceps , since Chin ups train multiple muscles group at same time and they do not focus only on biceps the results will be slower

This post was edited by WhenLadderReset on Sep 12 2020 12:26am