Ya don’t go by number of caps. Microdosing needs to be a precise measurement so you don’t do too much. Key is to use a Coffee Grinder and a Scale that goes to .000. Size 0 gel caps.
Most people do about .15 to .2
High Precision Milligram... https://www.amazon.com/dp/B07G7XZGXJ?ref=ppx_pop_mob_ap_share