How much taller will i be?

Most women stop growing in their early twenties, so you've still got a few years. You've probably already heard this, but calcium is a great source for strengthening and lengthening bones. Have you considered yoga? It's great for becoming flexible, since it teaches you various stretches, which helps in the growing process. Stretch in the morning, afternoon, and evening, which gets rid of tension in the bones, and again, lots of calcium and good diet and exercise, and I'd say that you can gain a couple of inches in a year or two. But remember to be patient - I'm 18 and 5'4"! =)