Free tool
BMI calculator for women
Enter your height and weight to get your body mass index instantly. We'll show you what the number means for women — and whether you may qualify for clinician-prescribed GLP-1 weight loss treatment.
- Takes under 30 seconds — no account, no email required
- Interpreted for women, including PCOS and menopause context
- Instant GLP-1 eligibility guidance based on clinical guidelines
Enter your height and weight to see your result.
This calculator is for general information only and is not medical advice or a diagnosis. BMI does not measure body fat directly. Not intended for use during pregnancy.
BMI chart for women
The World Health Organization ranges below apply to adults of all genders. They are a screening guide — your clinician will look at the whole picture.
| Category | BMI range | What it means |
|---|---|---|
| Underweight | Below 18.5 | May indicate low energy stores or an underlying condition. |
| Healthy weight | 18.5 – 24.9 | Associated with the lowest metabolic risk for most women. |
| Overweight | 25.0 – 29.9 | Treatment may be appropriate with a weight-related condition. |
| Obesity class I | 30.0 – 34.9 | Generally eligible for medical weight-loss treatment. |
| Obesity class II | 35.0 – 39.9 | Clinician-guided care strongly recommended. |
| Obesity class III | 40.0 and above | Comprehensive medical care recommended. |
What BMI means for women specifically
Body composition differs
Women carry more essential body fat than men at the same BMI, so the number alone tells an incomplete story about metabolic health.
Hormones move the number
Perimenopause, menopause, PCOS, and thyroid conditions all change how the body stores fat and how easily weight comes off.
Waist matters too
A waist above 35 inches signals higher cardiometabolic risk for women, even when BMI reads in the healthy range.
Trend beats snapshot
One reading is a data point. Tracking BMI alongside labs, energy, and how clothes fit is far more useful over time.
What BMI qualifies for GLP-1 weight loss treatment?
Clinical guidelines generally support prescription weight-loss medication such as semaglutide or tirzepatide when your BMI is 30 or higher, or 27 or higher with at least one weight-related health condition. A licensed medical provider reviews your full history before anything is prescribed.
Learn how GLP-1 treatment works →Weight-related conditions
- Prediabetes
- Type 2 diabetes
- High blood pressure
- High cholesterol
- PCOS
- Obstructive sleep apnea
- Fatty liver disease
- Osteoarthritis
BMI questions women ask
What is a healthy BMI for a woman?
For most adult women, a BMI between 18.5 and 24.9 is considered the healthy range. BMI is a screening tool, not a diagnosis — body composition, muscle mass, age, and ethnicity all affect what is healthy for you.
Is BMI accurate for women?
BMI uses only height and weight, so it does not measure body fat directly or account for the differences in fat distribution between women and men. Women naturally carry more essential body fat than men at the same BMI. Use it as a starting point, then talk with a clinician about waist circumference, labs, and health history.
What BMI do you need to qualify for GLP-1 weight loss medication?
Clinical guidelines generally support weight-loss medication at a BMI of 30 or higher, or a BMI of 27 or higher with at least one weight-related condition such as prediabetes, type 2 diabetes, high blood pressure, high cholesterol, PCOS, or sleep apnea. A licensed clinician makes the final decision after reviewing your full health history.
Does BMI change during menopause or after pregnancy?
Weight and body composition shift with hormonal changes, so BMI often moves during perimenopause, menopause, and the postpartum period. Recalculate periodically and track the trend rather than a single number.
How can I lower my BMI safely?
Sustainable change comes from nutrition, movement, sleep, and stress management — and for some women, medical treatment such as GLP-1 therapy alongside those habits. Rapid or extreme dieting tends to reverse. A clinician can help you build a plan you can keep.
Your number is a starting point
Renew your health, not just your weight.
See if you qualify for clinician-guided GLP-1 care built for women. It takes five minutes.