How many blunts can you roll with a ounce of weed?

One small one. If you are smoking KB it is best to smoke it out of a glass pipe or bong. There are 28 grams in an ounce and 7 in a quarter.(add 1 gram for a standard non zip sandwich baggie) I don't know what size blunts you like, but I can not get 7 blunts out of a quarter.