About

BMI Calculator

Calculate your Body Mass Index (BMI) and check your ideal weight range

Enter your height and weight to calculate BMI

About This Tool

BMI Calculator is a free online tool that calculates your Body Mass Index based on your height and weight. BMI is a widely used indicator of body fatness and health status, recognized by healthcare professionals, fitness trainers, and nutritionists around the world as a quick screening tool for weight-related health risks. The calculator supports both metric (cm/kg) and imperial (ft+in/lbs) units, making it accessible to users worldwide. Regularly monitoring your BMI can help you track your fitness progress over time, set realistic weight management goals, and identify potential health concerns early. Whether you're starting a new diet plan, training for a fitness event, or just curious about your health metrics, this calculator provides instant results with clear health category classification.

How to Use

  1. Select your preferred unit system: Metric (cm/kg) or Imperial (ft+in/lbs).
  2. Enter your height in the height input field.
  3. Enter your weight in the weight input field.
  4. Click the 'Calculate BMI' button to get your results.
  5. View your BMI value, health category (Underweight, Normal, Overweight, or Obese), and ideal weight range.
  6. Use the color-coded category indicator to quickly understand your health status.

Frequently Asked Questions

BMI (Body Mass Index) is a measure of body fat based on your height and weight. It's used to screen for weight categories that may lead to health problems. While BMI doesn't directly measure body fat, it's a useful screening tool for most adults.
A healthy BMI range is typically 18.5 to 24.9. Below 18.5 is considered underweight, 25 to 29.9 is overweight, and 30 or above is obese. However, BMI is just one indicator of health and doesn't account for factors like muscle mass, bone density, or overall body composition.
No, all calculations happen entirely in your browser. Your height and weight information is never sent to any server or stored anywhere.
This calculator is designed for adults. For children and teenagers, BMI is interpreted differently based on age and sex. Please consult a pediatrician for accurate BMI assessment for children.
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