Well, curvy girls are usually anyone 170 lbs plus.. Now my ex gf's were both curvy they were both over 200 lbs. Some could call a certain few of who I dated to be considered overweight, but it made no difference to me.
I'm 29 years old and I'm about 5ft 7 so how much should I weigh? Also I'm curvy.
This is a bit of a general chart, but it gives you a good idea of whereabouts you should be, based on your height.
This chart doesn't take into account things like muscle mass for example.
120-140 lbs. Would be healthy weight while still maintaining those lovely curves. Exercising and getting muscle is important for not looking skinny fat - meaning: Even though you lost a couple inches you have even more flab.