FitCalc

BMI Calculator for Women

BMI for adult women, with the healthy range and the body-composition context that matters most.

Quick answer: BMI is calculated the same way for women and men, but women carry more essential fat on average. A BMI of 18.5–24.9 is the healthy band for adult women; below about 21, very low body fat can affect menstrual health.

cm
kg
Your BMI
23.5
Category
Normal weight
BMI prime
0.94
Your BMI ÷ 25 (healthy upper limit)
Healthy weight range
57–76 kg
For your height at BMI 18.5–24.9
Height175 cm
Weight72.0 kg
BMI23.5
CategoryNormal weight

Who BMI bands (adults)

BMICategory
Below 18.5Underweight
18.5 – 24.9Normal weight
25.0 – 29.9Overweight
30.0 – 34.9Obesity class I
35.0 – 39.9Obesity class II
40.0 and aboveObesity class III

BMI is a screening measure, not a diagnosis. It does not distinguish muscle from fat, and athletes with high muscle mass can read as overweight. Children and teenagers are assessed against age- and sex-specific percentile charts, not these adult bands. Talk to a healthcare professional about your own health.

Core facts
FormulaSame as standard BMI
Healthy band18.5 – 24.9
Essential fatWomen: higher than men
Pair withWaist-to-hip ratio

What is BMI Calculator for Women?

The BMI formula does not contain a sex term, so the number is calculated identically for women. What differs is interpretation. Women carry more essential fat than men — roughly 10–13% versus 2–5% — because of reproductive physiology, and healthy body fat ranges are correspondingly higher. That means a woman and a man with the same BMI can have quite different body composition. This calculator returns the standard BMI and category, and points you to body fat and waist measurements for a more complete picture. Very low body fat in women can disrupt menstrual cycles, which BMI alone will not reveal.

Common Uses for BMI Calculator for Women

  • Check your BMI and category with female body-composition context
  • See the healthy weight range for your height
  • Decide whether to add a body fat or waist measurement to the picture
  • Track change over pregnancy recovery or a training cycle

Frequently Asked Questions

Is BMI different for women?
The formula is identical; only the interpretation differs. Women naturally carry more essential fat, so a healthy body fat percentage is higher for women than men at the same BMI.
What BMI is too low for a woman?
Below 18.5 is underweight. For women who menstruate, sustained very low body fat can stop periods even at a normal BMI, so clinical judgement matters more than the number alone.
Should women use a different healthy range?
The WHO 18.5–24.9 range applies to adult women too. Body fat percentage gives the female-specific detail that BMI cannot.

More Body Composition Calculators

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BMI in centimetres and kilograms, with your category and healthy weight range.
BMI Calculator (Imperial)
BMI in feet, inches and pounds, with category and a healthy weight range in pounds.
BMI for Kids & Teens
Child and teen BMI with the caveat that children are assessed on age-and-sex percentile charts, not adult bands.
BMI Chart
Check the healthy weight range for your height and read the WHO BMI bands at a glance.
Body Fat Calculator
Estimate body fat percentage from tape measurements with the US Navy method, plus fat mass and lean mass.
Body Fat Percentage Calculator
Find your body fat percentage and where it sits against healthy ranges for your sex.
Army Body Fat Calculator
The US Army circumference method for body fat, using neck, waist and hip measurements.
Navy Body Fat Calculator
The US Navy circumference formula for body fat, with the exact measurement sites.
Lean Body Mass Calculator
Lean body mass and fat mass from your weight and body fat percentage.
Ideal Weight Calculator
Ideal body weight from the Devine, Robinson, Miller and Hamwi formulas, alongside the healthy BMI range.
Waist-to-Hip Ratio Calculator
Waist-to-hip ratio and the WHO risk thresholds for fat distribution.
Body Recomposition Calculator
Calorie and protein targets for losing fat while building or holding muscle.

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