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BMI for 183 cm and 45 kg

A person 183 cm (6'0") tall weighing 45 kg (99 lbs) has a BMI of 13.4 — classified as Underweight. The healthy weight range for this height is 62.0–83.4 kg.

Your BMI
13.4
Category
Underweight
Under 18.518.5–24.925–29.930+
Healthy weight range: 62.0–83.4 kg

What does this BMI mean?

A BMI of 13.4 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 183 cm tall, weights between 62.0 kg and 83.4 kg fall in the BMI 18.5–24.9 normal range. That's roughly 137–184 lbs.

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45 kg → lbs183 cm → feet & inchesFull BMI CalculatorCalorie / TDEE Calculator

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Last updated: 2026