BMI Calculator for Women
BMI uses one sex-neutral formula — weight ÷ height² — for women and men alike. Calculate yours below, and see what the number does and doesn't capture.
Calculate BMI
Range: 30–300 kg · up to 2 decimals
Enter your height in centimeters (e.g., 170 cm)
South, East or Southeast Asian — applies WHO 2004 adjusted thresholds
*This calculator is for informational purposes only. Please consult a healthcare professional before making any health decisions. See our medical disclaimer for more information.
Calculations are powered by the WHO BMI Classification System, the global standard for weight category assessment.
Quick Answer
Is BMI Different for Women?
No — BMI uses one formula for everyone. Weight ÷ height², read against the same 18.5–24.9 healthy band, whether you are a woman or a man. A woman of 68 kg at 168 cm has a BMI of 24.1 — exactly what a man of the same size would get. What differs is body composition, not the calculation, and that is worth understanding when you read your result.
One Formula, Same Thresholds
There is no women’s BMI equation. The formula takes only weight and height, with no term for sex, so the calculator above gives a woman the same BMI it would give a man of identical height and weight. The category boundaries are shared too — normal from 18.5 to 24.9, overweight from 25, obese from 30. The only variations the tool applies are the WHO 2004 Asian thresholds (lower action points for Asian populations) and the senior ranges for ages 65 and over, and both of those apply equally to women and men.
What BMI Leaves Out
Because the formula only knows your weight and height, it cannot see that women typically carry a higher share of body fat than men at the same BMI, nor where that weight sits. Two women with the same BMI can have very different builds. That is why BMI is best treated as a quick screen rather than the whole picture. To add composition detail, the Body Fat Percentage Calculator estimates your fat percentage from tape measurements, and the Ideal Weight Calculator gives a target range from your height. For Asian and senior thresholds, use the parent BMI Calculator.
BMI is not designed for pregnancy or the early postpartum period. It is a general screening figure, not a diagnosis; girls and teens under 20 use age-specific percentiles instead.
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