BMI for 181 cm and 50 kg
A person 181 cm (5'11") tall weighing 50 kg (110 lbs) has a BMI of 15.3 — classified as Underweight. The healthy weight range for this height is 60.6–81.6 kg.
Your BMI
15.3
Category
Underweight
Under 18.518.5–24.925–29.930+
Healthy weight range: 60.6–81.6 kg
What does this BMI mean?
A BMI of 15.3 sits in the Underweight range under the standard WHO adult classification. This range is associated with nutritional gaps for some people. If unintentional, a check-up and dietary review are sensible.
For someone 181 cm tall, weights between 60.6 kg and 81.6 kg fall in the BMI 18.5–24.9 normal range. That's roughly 134–180 lbs.
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Last updated: 2026