How the BMI Calculator Works
Welcome to our Multilingual BMI Calculator, a free online tool designed to help you determine your Body Mass Index (BMI) using standards from the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC). This BMI calculator is user-friendly, supports multiple languages (English, Russian, French, German, Spanish, and Chinese), and provides accurate health assessments for adults and children aged 2–120 years.
What is BMI?
Body Mass Index (BMI) is a measure of body fat based on your height and weight. It helps categorize individuals as underweight, normal weight, overweight, or obese, providing a general indicator of health risks associated with body weight. Our calculator uses the following formula:
- Metric Units (kg/m²): BMI = weight (kg) / (height (m) × height (m))
- US Units (lb/in²): BMI = 703 × weight (lb) / (height (in) × height (in))
How to Use the BMI Calculator
Follow these simple steps to use our BMI calculator:
- Select Your Language: Use the dropdown menu at the top to choose your preferred language (English, Russian, French, German, Spanish, or Chinese).
- Choose Units: Select either Metric Units (cm/kg) or US Units (ft/in/lbs) using the unit toggle buttons.
- Enter Your Details: Input your age (2–120 years), gender (male or female), height, and weight in the provided fields.
- Calculate: Click the "Calculate" button to see your BMI, category, and detailed health tips.
- Reset: Use the "Clear" button to reset all fields and start over.
BMI Categories
Our calculator categorizes your BMI into the following groups based on WHO and CDC standards:
- Underweight: BMI < 18.5 (Red)
- Normal: BMI 18.5–24.9 (Light Green)
- Overweight: BMI 25–29.9 (Pink)
- Obese: BMI ≥ 30 (Red)
For children and teens (2–20 years), we use CDC percentiles to assess weight status, providing age- and gender-specific results.
Features of Our BMI Calculator
- Multilingual Support: Available in English, Russian, French, German, Spanish, and Chinese for global accessibility.
- Accurate Calculations: Uses WHO and CDC standards for adults and children, including BMI Prime and Ponderal Index.
- Health Tips: Provides detailed, language-specific recommendations on diet, exercise, and medical advice based on your BMI category.
- Mobile-Friendly Design: Fully responsive for use on desktops, tablets, and smartphones with an eye-catching, modern interface.
Why Use Our BMI Calculator?
This tool is ideal for anyone looking to monitor their health, manage weight, or understand potential health risks. It’s free, easy to use, and offers personalized insights in your preferred language. Whether you’re an adult or a parent monitoring a child’s growth, our BMI calculator provides reliable results to guide your wellness journey.