BMI for 180 cm & 40 kg

Pre-calculated Body Mass Index result for a height of 180 cm and a weight of 40 kg.

Your BMI

12.3

Severe Thinness

1618.525303540+

What does this mean?

At 180 cm and 40 kg, your Body Mass Index is 12.3, which falls into the Severe Thinness category.

A BMI below 16 is classified as Severe Thinness. This may indicate significant undernutrition and carries elevated health risks including weakened immunity and muscle loss. Consulting a healthcare professional is strongly recommended.

BMI is calculated as weight (kg) / height² (m). While it is a widely used screening tool, it does not differentiate between muscle and fat mass. For a more complete picture, consider measuring your body fat percentage.

Explore nearby BMI values

Same height (180 cm), different weight

Weight	BMI	Category
45 kg	13.9	Severe Thinness
50 kg	15.4	Severe Thinness
55 kg	17.0	Moderate Thinness

Same weight (40 kg), different height

Height	BMI	Category
165 cm	14.7	Severe Thinness
170 cm	13.8	Severe Thinness
175 cm	13.1	Severe Thinness
185 cm	11.7	Severe Thinness
190 cm	11.1	Severe Thinness
195 cm	10.5	Severe Thinness

Want to calculate with your exact measurements?

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Disclaimer: This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.