BMI Calculator

Calculate your Body Mass Index (BMI) to understand your weight status and potential health risks.

Height

Weight

Age (optional)

Gender (optional)

Your BMI Results

Your BMI suggests you are in the healthy weight range.

BMI Range	Weight Status	Health Risk
Below 18.5	Underweight	Possible nutritional deficiency and osteoporosis
18.5 - 24.9	Normal weight	Low risk (healthy range)
25 - 29.9	Overweight	Moderate risk of developing heart disease, high blood pressure, stroke, diabetes
30 - 34.9	Obese Class I	High risk of developing heart disease, high blood pressure, stroke, diabetes
35 - 39.9	Obese Class II	Very high risk of developing heart disease, high blood pressure, stroke, diabetes
40 and above	Obese Class III	Extremely high risk of developing heart disease, high blood pressure, stroke, diabetes

Additional Information

Healthy Weight Range for Your Height -

Weight to Reach Normal BMI -

Ponderal Index -

Important Note

BMI is a screening tool but not a diagnostic of body fatness or health. It may overestimate body fat in athletes and underestimate it in older persons. Always consult a healthcare provider for health assessments.

Health Recommendations

Based on your BMI, consider maintaining a balanced diet and regular exercise to stay healthy.

BMI Calculator - Calculate Your Body Mass Index & Health Assessment

Our free BMI calculator helps you determine your Body Mass Index and understand what it means for your health. Calculate your BMI score instantly and learn about your weight category - underweight, normal weight, overweight, or obese - based on World Health Organization standards.

Track your body mass index regularly to monitor your health progress and understand potential health risks associated with different weight categories. Perfect for weight management, fitness tracking, and health assessments.

How to Use This BMI Calculator

Step 1: Enter Your Measurements

Input your height in centimeters or feet/inches
Enter your current weight in kilograms or pounds
Select your age and gender for accurate assessment

Step 2: Understand Your Results

Get your BMI score and weight category
Review health recommendations based on your results
Learn about healthy BMI ranges for your profile

Why Use Our BMI Calculator?

WHO Standard Calculations

Our calculator uses official World Health Organization BMI standards and categories for accurate health assessments and reliable results.

Age & Gender Specific

Get personalized results that consider your age and gender, providing more accurate health insights than basic BMI calculators.

Health Risk Analysis

Understand potential health risks associated with your BMI category and receive evidence-based recommendations for improvement.

Mobile Friendly

Calculate your BMI anywhere, anytime with our responsive design that works perfectly on all devices - desktop, tablet, and mobile.

Professional Health Tool

Used by healthcare professionals, fitness trainers, and individuals worldwide to monitor health metrics and track wellness progress over time.

Frequently Asked Questions (FAQ)

What is a healthy BMI range?

According to WHO standards, a healthy BMI ranges from 18.5 to 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is considered obese. These ranges may vary slightly for athletes and older adults.

Is BMI accurate for athletes and muscular individuals?

BMI may overestimate body fat in athletes and muscular individuals since it doesn't distinguish between muscle and fat. In such cases, additional measurements like body fat percentage provide better insights.

How often should I check my BMI?

For general health monitoring, checking your BMI once a month is sufficient. If you're actively trying to lose or gain weight, you might check it every 1-2 weeks to track progress.

Can children use this BMI calculator?

This calculator is designed for adults aged 18+. Children and teenagers require specialized BMI-for-age percentiles that account for growth patterns and development stages.