BMI Calculator

Calculate your Body Mass Index (BMI) with detailed health analysis, personalized recommendations, and visual indicators. Supports both metric and imperial units with instant results. All calculations are done in your browser for privacy.

How It Works

1

Enter Your Measurements

Input your height and weight using either metric (kg/cm) or imperial (lbs/ft-in) units. Switch between units easily with the toggle button.

2

Get Instant BMI Calculation

Your BMI is calculated automatically as you type, with real-time updates and visual indicators showing your health category.

3

Review Health Analysis

View your BMI category, healthy weight range recommendations, personalized health tips, and visual BMI chart for comprehensive analysis.

Frequently Asked Questions

What is BMI and how is it calculated?

BMI (Body Mass Index) is a measure of body fat based on height and weight. It's calculated using the formula: BMI = weight (kg) / height (m)². For imperial units: BMI = (weight in pounds × 703) / (height in inches)².

What are the BMI categories and what do they mean?

BMI categories are: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (30 and above). These categories help assess potential health risks associated with weight.

Is BMI accurate for everyone?

BMI is a useful screening tool but has limitations. It doesn't distinguish between muscle and fat mass, so it may not be accurate for athletes, elderly people, or those with high muscle mass. Always consult healthcare professionals for comprehensive health assessment.

Can I use both metric and imperial units?

Yes, our calculator supports both metric (kilograms and centimeters) and imperial (pounds and feet/inches) units. You can easily switch between them using the unit toggle button.

What is a healthy weight range?

A healthy weight range corresponds to a BMI between 18.5 and 24.9. Our calculator shows your specific healthy weight range based on your height, helping you understand target weight goals.

Is my health data kept private?

Yes, absolutely. All BMI calculations are performed entirely in your browser. No personal health data is sent to our servers, ensuring complete privacy of your health information.

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