BMI for 157 cm and 100 kg
A person 157 cm (5'2") tall weighing 100 kg (220 lbs) has a BMI of 40.6 — classified as Obese. The healthy weight range for this height is 45.6–61.4 kg.
Your BMI score
Quick health screening — not a diagnosis
Your BMI falls within class III obesity, with very high long-term health risk.
What this means
BMI is a quick screening number based only on height and weight. It doesn't distinguish muscle from fat, and shouldn't replace a clinical assessment.
- 18.5–24.9 generally lowest health risk
- 25–29.9 elevated metabolic risk
- 30+ higher long-term risk
BMI range
WHO adult classification
- Severe thinness< 16
- Underweight16 – 18.5
- Normal18.5 – 24.9
- Overweight25 – 29.9
- Obese I30 – 34.9
- Obese II35 – 39.9
- YouObese III≥ 40
What does this BMI mean?
Obesity class III · BMI 40.6 · Obese
A BMI of 40.6 is in obesity class III (40+). At 157 cm, body weight sits roughly 38.6 kg — about 63% — above the upper healthy bound of 61.4 kg.
This BMI band carries the strongest population-level health signal, but it's not deterministic. A clinician can interpret it alongside blood pressure, lipids, glucose, and body composition for a meaningful picture.
BMI is a screening tool, not a diagnosis. It doesn't know the difference between fat and muscle, doesn't measure where weight sits on the body, and doesn't account for age, sex, or ethnicity-specific cutoffs.
For someone 157 cm tall, weights between 45.6 kg and 61.4 kg fall in the BMI 18.5–24.9 healthy range — roughly 101–135 lbs.
How far from the healthy range?
Target BMI milestones
Weights that would land at common BMI thresholds for 157 cm.
| Milestone | Target weight | vs current |
|---|---|---|
| BMI 40 (class III threshold) | 98.6 kg(217 lbs) | Lose ~1.4 kg |
| BMI 35 (class II threshold) | 86.3 kg(190 lbs) | Lose ~13.7 kg |
| BMI 30 (obesity threshold) | 73.9 kg(163 lbs) | Lose ~26.1 kg |
| BMI 25 (healthy range) | 61.6 kg(136 lbs) | Lose ~38.4 kg |
Why BMI isn't the whole story
- Muscle vs fat: BMI treats a kilogram of muscle the same as a kilogram of fat. Strength athletes and very muscular builds can land in the overweight band while having low body fat.
- Body shape matters: Two people at the same BMI can carry weight very differently. Waist circumference and waist-to-height ratio capture risk that BMI misses.
- Age, sex, ethnicity: The 18.5–24.9 window is a single global average. Cutoffs adjusted for ethnicity and age can shift the interpretation, especially at the edges of the band.
- Still useful: BMI remains widely used because it's cheap, fast, and roughly predictive at population scale. Treat it as a self-check signal, not a diagnosis.
Nearby BMI combinations
Related
Common questions
Last updated: 2026