BMI for 175 cm and 40 kg
A person 175 cm (5'9") tall weighing 40 kg (88 lbs) has a BMI of 13.1 — classified as Underweight. The healthy weight range for this height is 56.7–76.3 kg.
Your BMI
13.1
Category
Underweight
Under 18.518.5–24.925–29.930+
Healthy weight range: 56.7–76.3 kg
What does this BMI mean?
A BMI of 13.1 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 175 cm tall, weights between 56.7 kg and 76.3 kg fall in the BMI 18.5–24.9 normal range. That's roughly 125–168 lbs.
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Last updated: 2026