What Information Is Needed to Calculate the BMI for a Female?


Quick Answer

Women need to know their height and weight in order to calculate their body mass index, or BMI. BMI is equal to weight in pounds divided by height in inches squared, multiplied by 703, as stated by WebMD. This formula is the same for men and women.

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What Information Is Needed to Calculate the BMI for a Female?
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Full Answer

The healthy BMI range for both adult males and females ranges from 18.5 to 24.9, as reported by WebMD. Women who have a BMI of between 25 and 29.9 are overweight, while those who have a BMI of 30 or more are obese. Being overweight or obese increases an individual's risk of dying, but there are also health concerns associated with being underweight, which is a BMI of less than 18.5.

Different healthy BMI ranges apply for children and young people under 20, according to MedicineNet. Rather than using a standard BMI range to determine whether a girl has a healthy weight, doctors calculate her BMI using her height and weight and compare it to other girls of the same age. Girls who weigh less than 95 percent of their female peers are classed as being underweight. On the other hand, girls who weigh more than 95 of other girls of their age are overweight, while those who weigh more than 85 percent of their peers are at risk of being overweight.

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