Advanced BMI Calculator

Calculate your Body Mass Index and get personalized health insights

Calculate Your BMI

Your Results

Enter your details and calculate your BMI to see results

BMI Categories Chart

Underweight (<18.5)
Normal (18.5-24.9)
Overweight (25-29.9)
Obese (≥30)

Understanding BMI: Your Guide to Healthy Weight Management

What is BMI and Why It Matters

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared. BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.

Key Features of Our BMI Calculator

Our advanced BMI calculator offers several unique features:

Health Benefits of Maintaining a Healthy BMI

Maintaining a BMI within the normal range (18.5-24.9) offers numerous health benefits:

Frequently Asked Questions

Is BMI accurate for everyone?

While BMI is a useful screening tool for most adults, it may not accurately reflect body fat in athletes with high muscle mass, pregnant women, or the elderly. For these individuals, additional assessments may be needed.

How often should I check my BMI?

For most adults, checking BMI every 3-6 months is sufficient unless you're actively trying to lose or gain weight. Regular monitoring can help you maintain a healthy weight range.

What's the difference between BMI and body fat percentage?

BMI estimates body fat based on height and weight, while body fat percentage directly measures the proportion of fat in your body. Body fat percentage provides a more accurate assessment of body composition but requires specialized equipment to measure.

Can children use this BMI calculator?

This calculator is designed for adults. Children and teens require age and gender-specific BMI percentiles, which are interpreted differently than adult BMI. Consult a pediatrician for accurate BMI assessment for individuals under 20.