BMI Calculator
Calculate body mass index from height and weight, with the WHO adult category and a healthy weight range.
BMI
24.4
- Category (WHO, adults)
- Healthy weight
- Healthy weight for your height
- 125.3 lb – 168.6 lb
BMI is a screening number for adults 20+. It doesn't measure body fat and doesn't apply to children, pregnancy or very muscular builds.
Show the work
Height in centimeters
cm = (ft × 12 + in) × 2.54
(5 × 12 + 9) × 2.54 = 175.26 cm
Weight in kilograms
kg = lb × 0.45359237
165 × 0.45359237 = 74.84274105 kg
Height in meters
m = cm ÷ 100
175.26 ÷ 100 = 1.7526 m
BMI = weight ÷ height squared, to 1 decimal
BMI = kg ÷ m to the power of 2
74.84274105 ÷ 1.7526 to the power of 2 = 24.4
For general information only — not medical advice. Talk to a doctor or other qualified professional about your health.
How it works
BMI = weight (kg) ÷ height (m)²
Questions
- How does the BMI calculator work?
- BMI = weight (kg) ÷ height (m)².
- What do I need to enter?
- Units, Height, Height (feet), Height (inches), Weight. Optional fields can be left blank.
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