How Much Should a 21 Year-Old Woman Weigh?


BMI Provides Healthy Weight Range

The body mass index (BMI) scale provides estimates of healthy weight ranges for adults based on height. For example, a 21 year old woman who is 5 feet 4 inches should weigh between 110 and 145 pounds. A 21 year old woman who is 5 feet 7 inches tall should weigh between 121 and 159 pounds.

BMI Has Drawbacks

BMI estimates body fat reliably in most people, but it has limitations. For example, a very muscular person may have a high BMI without being overweight. In addition, BMI does not account for other risk factors, such as physical inactivity, waist circumference or high blood pressure, according to the CDC.

Bottom Line

Find your height and weight to determine your BMI. A BMI between 18.5 and 24.9 is considered normal, according to the CDC. Talk to your doctor for more information if you are concerned about your weight.

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