BMI for 177 cm and 50 kg
A person 177 cm (5'10") tall weighing 50 kg (110 lbs) has a BMI of 16.0 — classified as Underweight. The healthy weight range for this height is 58.0–78.0 kg.
Your BMI score
Quick health screening — not a diagnosis
Your BMI is well below the healthy range and may indicate serious 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
- YouSevere thinness< 16
- Underweight16 – 18.5
- Normal18.5 – 24.9
- Overweight25 – 29.9
- Obese I30 – 34.9
- Obese II35 – 39.9
- Obese III≥ 40
What does this BMI mean?
Severely underweight · BMI 16.0 · Underweight
A BMI of 16.0 falls well below the standard healthy range and is usually flagged as severely underweight. At 177 cm, body weight under 58.0 kg is generally considered too low for adults.
Being underweight isn't automatically a problem, but it can come with lower iron, B12, or calorie reserves. Worth investigating if weight has dropped without trying.
One number can't capture body composition. BMI is useful for population comparison and as a rough self-check, but pairing it with waist circumference or body-fat measurement gives a much more honest read.
For someone 177 cm tall, weights between 58.0 kg and 78.0 kg fall in the BMI 18.5–24.9 healthy range — roughly 128–172 lbs.
How far from the healthy range?
Target BMI milestones
Weights that would land at common BMI thresholds for 177 cm.
| Milestone | Target weight | vs current |
|---|---|---|
| BMI 18.5 (lower healthy bound) | 58.0 kg(128 lbs) | Gain ~8.0 kg |
| BMI 20 (low-healthy) | 62.7 kg(138 lbs) | Gain ~12.7 kg |
| BMI 22 (mid-healthy) | 68.9 kg(152 lbs) | Gain ~18.9 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