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Body Weight & Health Analyzer (BMI)
Calculate your Body Mass Index (BMI) instantly for weight assessments.
Awaiting Parameters
Input valid figures into the parameter fields and trigger calculations to compile results instantly.
Frequently Asked Questions
BMI (Body Mass Index) is a simple numerical value calculated from your height and weight using the formula: BMI = weight (kg) / height (m) squared. It provides a quick assessment of whether your weight is in a healthy range.
According to the WHO: Under 18.5 is Underweight, 18.5 to 24.9 is Normal or Healthy Weight, 25.0 to 29.9 is Overweight, and 30.0 and above is Obese.
BMI is a useful screening tool but not a diagnostic measure. It does not account for muscle mass, bone density, age, or fat distribution. Athletes may have high BMI due to muscle, not fat. Consult a doctor for a complete health assessment.
Multiply feet by 30.48 and inches by 2.54, then add them. For example, 5 feet 7 inches = (5 x 30.48) + (7 x 2.54) = 152.4 + 17.78 = 170.18 cm.
This calculator is designed for adults (18+). Children and teens require age and gender-specific BMI charts from a pediatrician as their body composition changes significantly during growth.
Enter your height in centimeters in the Height field (e.g., 170 for 5 foot 7 inches).
Enter your weight in kilograms in the Weight field (e.g., 70 kg).
Click Calculate Results — your BMI score appears instantly.
Check your BMI category: Underweight, Healthy Weight, Overweight, or Obese.
Use the result to make informed decisions about your diet and exercise routine.
⚡ Key Features
Instant BMI calculation using the standard WHO formula: weight / height squared
Clear health category: Underweight, Healthy, Overweight, or Obese
Supports both metric (kg, cm) measurements
100% private — all calculations happen in your browser, no data sent to any server
Color-coded result indicator for quick health assessment
Free to use — completely free
👥 Who Uses This Tool
Health EnthusiastsDieticiansGym MembersPatientsNursesFitness TrainersStudents
Frequently Asked Questions
BMI (Body Mass Index) is a simple numerical value calculated from your height and weight using the formula: BMI = weight (kg) / height (m) squared. It provides a quick assessment of whether your weight is in a healthy range.
According to the WHO: Under 18.5 is Underweight, 18.5 to 24.9 is Normal or Healthy Weight, 25.0 to 29.9 is Overweight, and 30.0 and above is Obese.
BMI is a useful screening tool but not a diagnostic measure. It does not account for muscle mass, bone density, age, or fat distribution. Athletes may have high BMI due to muscle, not fat. Consult a doctor for a complete health assessment.
Multiply feet by 30.48 and inches by 2.54, then add them. For example, 5 feet 7 inches = (5 x 30.48) + (7 x 2.54) = 152.4 + 17.78 = 170.18 cm.
This calculator is designed for adults (18+). Children and teens require age and gender-specific BMI charts from a pediatrician as their body composition changes significantly during growth.