BMI for 193 cm and 40 kg
BMI 10.7
Asia-Pacific cut-offs (23 · 25) · underweight
WHO international cut-offs (25 · 30) · underweight
Reference weight and healthy range
At BMI 22 the reference weight is 81.9 kg.
The healthy range (BMI 18.5–22.9) is 68.9–85.3 kg.
That is 28.9 kg below the bottom of the range.
Nearby heights and weights
BMI cannot tell muscle from fat, so it reads high for people who train heavily. It is a reference figure, not a diagnosis.