If you are a female, you most likely have stopped growing. If you do grow any more it will be very little. If you are a male you can grow until around the age of 21. As for how much? You parents height are not the only indication. You would have to look at your whole family tree to get a better idea, but even then it is just the luck of the draw. My grandfather was 6'2", my grandmother was 5'0". They had four sons. Oldest 5'8", next 5'6", then 5'10", and the youngest was 6'1".