I agree with natnat, it all depends on you. How often you study and when you feel ready to take the test. I just started studying for health safety and I plan to test at the end of the month. I hope to test every month to two months, depending on much I study. Excelsior says to study just as you would at a traditional college, for me thats 2 hrs a day. When you finish will depend on you also. Everyone I talk says it takes them a year and a half. Hope this helps.