BMI Calculator
Calculate Body Mass Index (BMI), ideal weight ranges, and health classification categories.
Calculate your Body Mass Index (BMI) using metric (kg/cm) or imperial (lbs/inches) units. Check your official WHO weight classification (Underweight, Normal, Overweight, Obese) and view healthy weight targets.
About BMI Calculator
Body Mass Index (BMI) is an international standard established by medical professionals and the World Health Organization to screen for weight categories that may lead to health risks.
How to Use BMI Calculator
- Select unit system: Choose Metric (kg/cm) or Imperial (lbs/feet/inches).
- Enter height and weight: Input your height and current body weight.
- Calculate BMI score: View your calculated BMI number instantly.
- Review healthy weight range: Check where your BMI falls on the WHO health spectrum and see ideal weight parameters.
Key Features
- Metric (kg/cm) and Imperial (lbs/ft/in) units
- Official WHO weight status categories
- Healthy weight range calculation
- Color-coded visual health scale
- 100% private in-browser
Common Use Cases
- Tracking personal fitness and weight loss progress over time.
- Checking healthy weight benchmarks for fitness programs.
- Quick health screening reference for doctors and personal trainers.
Formula & Calculation Logic
Metric: BMI = weight (kg) / (height (m))². Imperial: BMI = (weight (lbs) / (height (in))²) × 703.
Frequently Asked Questions
What is a healthy BMI range?
According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal or healthy weight for adults.
What is the BMI formula for metric units?
BMI = weight (kg) / [height (m)]^2.
What is the BMI formula for imperial units?
BMI = [weight (lbs) / height (inches)^2] × 703.
Does BMI distinguish between muscle mass and body fat?
BMI is a general screening indicator based on height and weight. Very muscular athletes may have a high BMI without excessive body fat.
Privacy Guarantee
Your personal health metrics remain completely private and are never sent over the web.
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