BMI Calculator

Weight (kg) divided by height (m) squared. Example: 60 kg at 165 cm (1.65 m) gives 60 / (1.65 × 1.65) = 22.04. That falls in the normal band under both WHO Asia-Pacific (18.5–22.9) and Depkes RI (18.5–25.0). The calculator does this automatically and shows your band under both standards.

It depends on the standard, which is the commonest source of confusion. WHO Asia-Pacific, used by Kemenkes, puts normal at 18.5–22.9. The classic Depkes RI bands put it at 18.5–25.0. Someone at 24 can be 'normal' under one and 'overweight' under the other — neither is wrong, they use different cut-offs.

BMI can't tell muscle from fat. Muscle is denser, so someone who lifts regularly can show a high BMI with low body fat and excellent metabolic health. Conversely, a normal BMI with low muscle and high abdominal fat can carry more risk. Read BMI alongside measures like waist circumference, and discuss it with a clinician.

Not in the same way. In pregnancy, weight gain is expected, and guidance is based on pre-pregnancy BMI instead. Children and teenagers use age- and sex-specific growth charts. In older adults, muscle mass declines naturally, so BMI can look normal while composition has changed. This calculator targets non-pregnant adults.

No. It's an estimation and early-screening aid, not a substitute for diagnosis or professional medical advice. BMI is one number among many that describe health — blood pressure, blood glucose, lipids, habits, family history. If your figure sits outside the normal range or you have concerns, speak with a qualified health professional.