Learning how much you should weigh is not a simple matter of looking at a height-weight chart. It also includes knowing the amount of bone, muscle, and fat in your body. The amount of fat is the most important measurement.
A good way to know how much fat you have is the body mass index (BMI). It is not a perfect measure. But it gives a fairly good idea of how much of your body is fat. Your body may vary based on your age or ethnicity. The most accurate way to find your BMI is to have an exam by your healthcare provider. Your provider can also talk with you about your risks for health problems. He or she can give you advice for diet and exercise to get to a healthy BMI.
BMI can be calculated using pounds and inches:
BMI = (weight in pounds x 703) / (height in inches x height in inches)
For example, a person who weighs 165 pounds and is 5 feet 4 inches tall has a BMI of 28:
(165 lbs x 703) / (64 inches x 64 inches) = 28
BMI can be calculated using kilograms and meters:
BMI = weight in kilograms / (height in meters x height in meters)
For example, a person who weighs 99.79 kilograms and is 1.905 meters tall has a BMI of 27.5:
99.79 kg / (1.905 meters x 1.905 meters) = 27.5
Here is what your number means:
BMI below 18.5 is underweight
BMI of 18.5 to 24.9 is healthy weight
BMI of 25 to 29.9 is overweight
BMI of 30 and above is obese