It's relatively easy. What I do is take a full insulin syringe(100 ius) and insert it into the peptide, but thats only with a 10mg vial. So take five hundred ius and insert that into the 50mg vial. So if you take 1mg that will equal one unit.
Stuff is fantastic, I just do 1mg a day for about twenty days and then a maintainence dose of 1mg every three days.