BMI calculator for women
Use the adult BMI calculator in metric or imperial units, with clear notes about pregnancy, menopause and what BMI does not measure.
Searching for an AI bmi calculator for women? This one uses a standard published formula, not an AI model, so you can see exactly how your number is made. See how BiteCal AI tracks meals against it.
Enter your measurements
Pregnancy-related weight changes should not be assessed with adult BMI. Menopause and other life stages can also affect body composition in ways this measure cannot capture. Adult BMI uses the same formula and category cut points regardless of sex.
Reference weight range
53.5–<72.25 kg
Mathematical range at this height using the selected reference; the upper limit is exclusive.
Within this BMI reference range.
BMI is a screening measure, not a diagnosis. It does not directly measure body fat, muscle mass, or fat distribution. It is not intended for pregnancy-related weight assessment.
Your result explained
Adult BMI is calculated the same way for women and men. This women-focused page uses the selected adult reference cutoffs; it does not apply different thresholds based on sex.
How it’s calculated
BMI = weight in kilograms ÷ height in metres squared. For imperial inputs the equivalent formula is 703 × weight in pounds ÷ height in inches squared. The displayed result is rounded to one decimal place; category logic uses the unrounded value.
Worked example: At 65 kg and 1.65 m, BMI = 65 ÷ 1.65² = 23.9. The value itself does not reveal body-fat distribution or identify a health condition.
Limits and accuracy
Pregnancy-related weight changes should not be interpreted with this calculator. Menopause and other life stages can affect body composition and health in ways BMI cannot represent. Discuss personal screening questions with a qualified clinician.
Adult BMI reference cutoffs
| Reference | Normal-weight BMI | Overweight | Obesity |
|---|---|---|---|
| WHO global | 18.5 to below 25 | 25 to below 30 | 30 and above |
| Asia-Pacific public-health action points | 18.5 to below 23 | 23 to below 27.5 | 27.5 and above |
| India reference in this tool | 18.5 to below 23 | 23 to below 25 | 25 and above |
Frequently asked questions
Is the BMI formula different for women?
No. Standard adult BMI uses the same height-and-weight formula and category thresholds regardless of sex.
Can I use BMI during pregnancy?
This calculator is not intended to assess pregnancy-related weight. Prenatal care uses different measures and individualized guidance.
Does BMI account for menopause or body composition?
No. BMI does not directly measure body fat, muscle mass, or fat distribution and does not account for menopause-related changes.
Does BMI replace medical advice?
No. BMI is a population screening measure and cannot diagnose an individual health condition.
How is the healthy-weight range calculated?
The tool converts the selected reference BMI interval into kilograms for your height. It is a mathematical range, not a personal weight recommendation.
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Estimates only. This is not medical advice. Last reviewed: 20 October 2026.