I posted some information that I hope helps you out
Ideal Body Weight Chart - Perfect Body Weight - Body Weight Height Proportion
Here is the ideal body weight chart for women (in terms of pounds) according to different body frames
But remember Body Mass Index Charts (BMI) are not always accurate
What people are saying here about Muscle Mass is true.
They can greatly effect the true accuracy of BMI charts
I find the old fashion way is best.Just by looking in the mirror
and turning sideways is the best way to determine if you need to lose weight.
If your body looks like the third picture you need to get on that treadmill