How can i increase my range while singing?

u just have 2 practice...try singing scales evryday and each day try n go up a few more notes!!..I was in a musical and thats what we did and we went up about 2 octaves from our normal range!

Try practicing pieces that have bunches of high and low notes, even if you don't really like the song, i think that should help you be more flexible/versatile! good luck and have fun! : )