Rather than relying only on the bathroom scale to tell you if you're overweight, experts say you should also know your body mass index BMI. Some other websites offer a bmr calculator, which is basal metabolic rate, and kudos to them for doing so. It also shows you how your weight compares to others of the same height and age. Also see the Ideal Weight Calculator Maintaining a healthy body weight is very important to all aspects of well being. Older people in hospital — Get well soon.