BMI for 50 kg and 155 cm
Instant answer: A person who weighs 50 kg (110 lbs) and is 155 cm (5'1") tall has a BMI of 20.8, classified as normal weight.
Someone 155 cm tall has a healthy weight window of 44.4–59.8 kg, derived from the standard adult BMI range.
What does a BMI of 20.8 mean?
This range corresponds to the lowest statistical risk of cardiovascular disease, type 2 diabetes, and metabolic syndrome in long-term cohort studies.
BMI is a screening tool, not a diagnosis. Two people at 50 kg and 155 cm can have very different body compositions and very different health profiles. Use BMI alongside waist circumference, fitness level, and routine bloodwork.
Healthy weight range for 155 cm
The BMI-based healthy weight range for 155 cm tall adults is 44.4–59.8 kg (98–132 lbs).
| Weight | In lbs | BMI | Category |
|---|---|---|---|
| 35 kg | 77 lbs | 14.6 | Underweight |
| 40 kg | 88 lbs | 16.6 | Underweight |
| 45 kg | 99 lbs | 18.7 | Normal weight |
| 50 kg (this page) | 110 lbs | 20.8 | Normal weight |
| 55 kg | 121 lbs | 22.9 | Normal weight |
| 60 kg | 132 lbs | 25.0 | Overweight |
| 65 kg | 143 lbs | 27.1 | Overweight |
Practical next steps
- Continue current habits; this BMI band is associated with the lowest health risk.
- Focus on protein intake (0.8–1 g per kg) and quality sleep.
- Track waist circumference rather than weight as you age.
- Annual labs are still worthwhile even at a healthy weight.
Frequently asked questions
What is the BMI for 50 kg and 155 cm?
Using the formula BMI = weight (kg) ÷ height (m)², a person who weighs 50 kg and is 155 cm tall has a BMI of 20.8. This places them in the normal weight category as defined by the World Health Organization.
Is 50 kg a healthy weight at 155 cm?
The healthy weight range for 155 cm is 44.4–59.8 kg, corresponding to a BMI of 18.5–24.9. 50 kg gives a BMI of 20.8, which is normal weight.
How was this BMI calculated?
BMI = 50 ÷ (1.55 × 1.55) = 50 ÷ 2.4025 = 20.8.
What should I do if my BMI is 20.8?
Continue current habits; this BMI band is associated with the lowest health risk. Focus on protein intake (0.8–1 g per kg) and quality sleep.