FORGET IDEAL WEIGHTS.
These numbers are based on ancient insurance company tables used to predict longevity. They have little to do with real health or size.
The number you want to go by is BODY FAT %. Two people can be the same gender, age, height, and weight, but be different sizes due to differences in body composition. This is part of what they mean by "frame size" but that only takes into account skeletal structure. Another very important component of weight and body composition is muscle. The person with the least fat relative to muscle is going to be SMALLER than another person of the same weight/height/etc. The flip side of that is that two people can be the same size, but if one has a smaller fat/lean ratio, they will be heavier. It's not what you weigh that matters, but what percentage of your body weight is made up of fat.
The guidelines for ideal body fat % for women is also all over the map. It's generally agreed that 25% or under is desirable. The low end of the range usually varies from 18% to 20%. Some women are able to go lower and sustain it, but some experience problems such as irregular or stopped periods at the lower percentages.
So, as a person who's always been overweight, my goal right now is 22% body fat. At 5'9", my current lean weight is about 137. That means 137 pounds of my body weight is muscle, organs, bones, skin, etc. So, if I didn't lose any more lean weight (always possible with weight loss, even with strengtht training), 22% body fat for me would be about 175. And that, my dears, is WAY off the top of the "ideal range" of any height-weight chart, yet is perfectly healthy.






