Find your BMI from your height and weight. The adult categories are the same for women and men. This page starts with the sex set to female.
For information only. BMI is a screening tool. It does not diagnose a health problem. Talk to a health care provider about your weight and your health.
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BMI for women
The CDC uses the same adult BMI categories for women and for men. A BMI from 18.5 to 24.9 is in the healthy weight range.
BMI is a screening tool. It does not show body fat. It does not show where the fat is on the body.
Girls and teens
For a girl from 2 to 19 years old, the CDC compares her BMI with the BMI of other girls of the same age. The percentiles for girls are not the same as for boys.
To see the percentile, choose Child or teen in the calculator.
Pregnancy
BMI charts are not for pregnant women. Use the weight from before the pregnancy. Talk to a health care provider about your weight in pregnancy.
How BMI is calculated
BMI equals the weight in kg divided by the height in meters, squared.
In US units, BMI equals 703 times the weight in lb, divided by the height in inches, squared.
Example: a person weighs 70 kg and is 175 cm tall. The height is 1.75 m. BMI equals 70 divided by 1.75 squared. That is 22.9.
How to use it
Choose your units: US or metric.
Type your height and your weight.
Read your BMI and your category. The result changes as you type.
No. The CDC uses the same adult categories for women and for men. A BMI from 18.5 to 24.9 is in the healthy weight range.
Does BMI show body fat?
No. BMI is a screening tool. It does not measure body fat directly. It does not show where the fat is on the body.
Can I use a BMI chart during pregnancy?
No. BMI charts are not for pregnant women. Use the weight from before the pregnancy. Talk to a health care provider about your weight in pregnancy.
How is BMI different for girls?
For a girl from 2 to 19 years old, the CDC compares her BMI with the BMI of other girls of the same age. The percentiles for girls are not the same as for boys.
Does the calculator send my height and weight to a server?
No. The calculator works in your browser and sends nothing. Your height, weight and age stay on your device. The page saves nothing. Read more about privacy.