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BMI: 178 cm, 45 kg
Underweight · 178 cm (5 ft 10 in), 45 kg (99 lb)
How it is calculated
BMI = weight (kg) ÷ height (m)² = 45 ÷ (1.78 × 1.78) = 45 ÷ 3.1684 = 14.2.
At 178 cm the healthy-weight range (BMI 18.5–24.9) is 58.6–78.9 kg; 45 kg is 13.6 kg below the healthy range. BMI 22 – the middle of the range – would be 69.7 kg.
Other weights at 178 cm
45 kg at other heights
FAQ
What is the BMI of 45 kg at 178 cm?
BMI = 45 ÷ 1.78² = 14.2, which the WHO classifies as underweight.
What is a healthy weight for 178 cm?
A BMI of 18.5–24.9 at 178 cm (5 ft 10 in) corresponds to 58.6–78.9 kg (129 lb–174 lb).
Is BMI accurate for everyone?
BMI does not distinguish muscle from fat. Very muscular people, older adults and some ethnic groups (WHO suggests lower cut-offs for Asian populations: 23 overweight, 27.5 obese) may need waist measurements or body-fat estimates as well.
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