Calculate your Body Mass Index to understand your weight status and potential health risks
Complete the form to get your personalized BMI analysis.
Discover why our BMI Calculator stands out
Uses the standard BMI formula for precise weight status estimation
Different interpretations based on physiological differences
See your BMI on a color-coded scale with clear categories
Understand what your BMI means for your health
May indicate malnutrition or other health problems. Consult a healthcare provider.
Lowest risk of health problems. Maintain through balanced diet and exercise.
May increase health risk. Consider lifestyle modifications.
Increased health risks including heart disease and diabetes.
Follow these simple steps
BMI interpretations differ slightly by gender.
Input your age, weight (kg), and height (cm).
Click Calculate to see your BMI with analysis and tips.
Common questions about Body Mass Index
BMI (Body Mass Index) is a measure of body fat based on height and weight. It provides a simple numeric measure that helps assess weight-related health risks. While not a direct measure of body fat, research shows BMI correlates well with direct body fat measures.
BMI = weight (kg) / height² (m²). For imperial: BMI = (weight (lbs) / height² (inches)) × 703. Categories: underweight (<18.5), normal (18.5-24.9), overweight (25-29.9), obese (30+).
BMI doesn't directly measure body fat. Athletes with high muscle mass may have a high BMI without excess fat. It also doesn't account for age, sex, ethnicity, and muscle mass distribution.
Every few months for most adults. Monthly if on a weight management program. Measure under consistent conditions for accurate tracking.
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