Free online BMI metric calculator. Enter height (cm) and weight (kg) to get your BMI, classification, health advice, and ideal weight range. Metric-only, clean interface. Runs entirely in your browser.
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FAQ
How do you calculate BMI in metric?
Metric BMI formula: BMI = Weight(kg) ÷ Height²(m). For example, weight 70kg, height 1.75m: BMI = 70 ÷ (1.75 × 1.75) = 22.86.
What is the normal BMI range?
WHO standard: Underweight < 18.5, Normal 18.5-24.9, Overweight 25.0-29.9, Obese ≥ 30.0. Some Asian countries use lower thresholds: Normal 18.5-22.9, Overweight 23.0-27.5, Obese ≥ 27.5.
What is the difference between BMI and body fat percentage?
BMI is based only on height and weight and cannot distinguish muscle from fat. Body fat percentage directly measures the proportion of fat in the body. Muscular individuals may have a high BMI but normal body fat.
Who is BMI applicable to?
Standard BMI applies to adults aged 18-65. Not suitable for: children and adolescents (use percentile charts), pregnant women, elderly (normal range may be wider at 23-28), professional athletes, or people with severe edema.
How can I improve my BMI?
To improve your BMI: 1) Eat a balanced diet and control calorie intake; 2) Get at least 150 minutes of moderate aerobic exercise per week; 3) Ensure 7-9 hours of sleep; 4) Reduce sedentary time; 5) Consult a nutritionist or doctor for a personalized plan.