Enter your height and weight to calculate your Body Mass Index and see which category you fall into.
Choose metric or imperial units, enter your height and weight, and your BMI and category appear instantly on a visual gauge.
BMI is calculated as weight (kg) ÷ height (m)², and is a general screening measure — it doesn't account for muscle mass, bone density, or body composition.
BMI is one of several general health indicators used as a starting point — it's simple to calculate but works best alongside other measures like waist circumference or body composition, and isn't a full picture of health on its own.
No — the BMI formula itself is the same for everyone. However, what counts as a "healthy" range can vary by individual factors, which is why BMI is best used alongside other health measures.
No — standard adult BMI ranges don't apply to children and teens, whose healthy ranges vary by age and sex. Pediatric growth charts should be used instead.
Use the Metric/Imperial toggle to switch — you don't need to convert anything manually.
Under 18.5 is underweight, 18.5–24.9 is normal, 25–29.9 is overweight, and 30+ is considered obese, per WHO standard ranges.
BMI is a general guideline and may not accurately reflect health for athletes, older adults, or those with high muscle mass. It's best used alongside other health measures and professional advice.
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