Am i bow legged and why are my knees weird?

When I put my feet together facing forwards, my knees point inwards and the rest of my legs range from about half an inch apart to about 2 1/2 inches apart. The main thing that bothers me is that I have to point my feet outwards to make my knees face forward. I don't mind too much that my legs don't touch. What is it and is there anything I can do to make my knees normal?