BMI for 45 kg at 190 cm tall
A person weighing 45 kg at 190 cm has a BMI of 12.5, classed as underweight. Healthy weight range for this height: 66.8–89.9 kg.
BMI 12.5 — Underweight
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Full breakdown
| BMI | 12.5 |
| Category (WHO) | Underweight |
| Healthy weight at 190 cm | 66.8 – 89.9 kg |
| Weight in pounds | 99.2 lb |
| Height in feet/inches | 6 ft 2.8 in |
Step-by-step working
- Convert height to metres: 190 cm ÷ 100 = 1.90 m
- Square the height: 1.90² = 3.6100 m²
- Divide weight by height²: 45 ÷ 3.6100 = 12.5
BMI = weight (kg) ÷ height (m)²
Try your own numbers with the BMI Calculator.