Calculate your Body Mass Index (BMI) and find your healthy weight range based on your height.
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Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.
BMI is calculated the same way, but the interpretation is different. Results are compared to typical values for other children of the same age and sex, using percentiles:
BMI is a useful screening tool, but it has limitations. It doesn't distinguish between muscle and fat, nor does it account for factors like age, sex, ethnicity, or muscle mass. Athletes and muscular individuals may have a high BMI without excess fat.
BMI provides a simple numeric measure of your weight relative to height. It was developed in the 19th century by Belgian mathematician Adolphe Quetelet and is widely used as a screening tool to categorize weight status.
Research has shown that BMI correlates with direct measures of body fat and with various health risks. Higher BMIs are associated with increased risk for conditions like:
While BMI is useful for population studies and general screening, it doesn't tell the complete story about your health. Other factors to consider include:
For a more comprehensive assessment of your health status, consider using our other calculators like the Body Fat Calculator or ABSI Calculator, and consult with healthcare professionals.
Learn what body fat percentage ranges are healthy for men and women, how body composition differs from BMI, and why it matters for your health goals.
Discover how Total Daily Energy Expenditure (TDEE) works, which formula is most accurate for you, and how to use it for weight management.
Discover how waist-to-hip ratio (WHR) indicates health risks, proper measurement techniques, and what healthy ratios look like for men and women.
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