HI luv4nursing- The math is actually quite easy once you get through all of the decimals and ratios etc... (high school math). There are only a few ways to calculate and all I can say is practice, practice practice. Also, we had to make flashcards of all of the conversions we had to learn in the very beginning...best thing I was told to do. Carry them with you wherever you go. If you're at a stoplight in your car, bust them out and quiz yourself. Anytime you have a few seconds or more, look at them, they will become so imbedded in your brain you will be very comfortable with them. They are the foundation to calculating the meds. Good luck, you can do it!!! ------------SissyK