Do you weigh too much or too little? If you are more than 16 years old, you can find your ideal weight here, that is the weight which gives you the greatest chance of living a long and healthy life. Ideal weight calculator for people aged 16 years or less.
Note: If you are very well-trained, then your ideal weight may be somewhat higher.
Some results tend to indicate that your probabilty to achieve a long life is slightly better if your weight is close to the upper limit for the normal weight, rather han if your wiehgt is close to the lower limit.
If you are less than 16 years of age, you cannot use the tool above. Instead, you can compute your body mass index, and apply this index using the diagram at the bottom of the body mass index page.