If you suspect that you are too fat or too thin, there are several perfectly simple rules that you can follow to find out exactly what you should weigh. Here, for instance, is the method advocated by Dr Peters of California.
What is your ideal weight?
Measure yourself standing in your stocking feet. Take the number of inches over 5 feet, which you register. Multiply this number of inches by 5-1/2 and add 110. For instance, say you are 5 feet 7 inches — 7 times 5-1/2 equals 38-1/2, plus 110; ideal weight = 148-1/2 pounds.
If you are under 5 feet, multiply the number of inches under 5 feet by 5-1/2 and subtract from 110. If, for instance, you are 4 feet 10 inches, or 2 inches under 5 feet, you would multiply 2 by 5-1/2, which is 11, and subtract that from 110, which would give your ideal weight of 99.
Tables of statistics allow an increase of a few pounds for every added 10 years in a woman’s life. This added weight is not necessary. If a woman is fat enough to be healthy, she need not necessarily continue to add flesh as she adds years. Indeed, if she stays slender she will not look so mature.
Ideal weight different under and over age 35
The average or ideal weight for a girl of 25 who is 65 inches tall is 127 pounds, but up to 139 pounds if she still comes within the permissible 10 percent excess weight, and that amount of superfluous flesh in a young person only adds to her good looks, not to mention good health.
It is after 35 that superfluous weight is of ill omen, and it is after 35 that an excess of weight spoils good looks. – The Atlanta Constitution (Atlanta, Georgia) October 15, 1920