Kalkulator BMI
The detailed guide below is currently available in English.
What is BMI?
Body mass index (BMI) is a quick screening measure that compares your weight to your height. It is computed as your weight in kilograms divided by the square of your height in meters. Health organizations use BMI to group adults into underweight, normal weight, overweight, and obesity ranges.
What BMI does and does not tell you
BMI is a useful first look at population-level health risk, but it has well-known limits: it does not distinguish muscle from fat, and it does not reflect where fat is distributed. Athletes often score "overweight" despite low body fat, and older adults may score "normal" while carrying higher risk. Use BMI as a starting point, alongside measures such as waist size, body fat percentage, and blood markers your doctor tracks.
Pertanyaan umum
How is BMI calculated?
Divide weight in kilograms by height in meters squared. In US units, a common shortcut is 703 × pounds ÷ inches² — this calculator converts your inputs to metric and applies the same formula.
Is BMI different for men and women?
The adult formula and ranges are the same for men and women. Body composition differs on average, which is one reason BMI should be read as a rough screen rather than a diagnosis.
Is BMI valid for children?
Not directly. For ages 2–19, pediatricians compare BMI against age- and sex-specific growth charts. This calculator flags that case in its output.