it depends on if you shoot ed or eod and also how many mls you end up with after the conversion. just take the amount of mls and thats how many days it will last,considering your using 75mg per day.
7.5 weeks at ed injections or 15 wks. at eod injections, if you end up with 53 cc's like Gilly6993 said. If you took 1 cc a day, you would have 53 days worth, if you took it everyother day you would have 106 days worth. Divide that no. by 7 days in a wk. to get the no. of weeks. 53 /7= 7.5 106 /7=15