Free BMI Calculator

 

BMI Calculator

Enter your weight and height to calculate your BMI instantly

Weight (kg): Height (cm):

BMI Categories: Underweight <18.5, Normal 18.5–24.9, Overweight 25–29.9, Obese ≥30

✅ How to Use the BMI Calculator

Follow these simple steps:

1. Enter your weight in kilograms (kg)

2. Enter your height in centimeters (cm)

3. Click on “Calculate BMI”

4. Instantly see your BMI score and health status

No registration required. Works on mobile and desktop.

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📐 BMI Formula Used

The Body Mass Index is calculated using this formula:

BMI = Weight (kg) ÷ Height² (m²)

Example:

Weight = 70 kg  
Height = 1.75 m  

BMI = 70 ÷ (1.75 × 1.75) = 22.9

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📊 BMI Categories Explained

BMI Range	Category
Below 18.5	Underweight
18.5 – 24.9	Normal weight
25 – 29.9	Overweight
30 and above	Obese

✔ Ideal BMI range is 18.5 – 24.9

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🏥 Why BMI Is Important

BMI helps you:

✅ Understand your body health

✅ Track weight-related risks

✅  Prevent obesity-related diseases

✅  Maintain a healthy lifestyle

✅  Monitor fitness progress

Doctors often use BMI as a basic health indicator.

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⚠️ Important Note

BMI does not measure body fat directly.
Athletes or muscular people may have a high BMI but low fat percentage.

For accurate health advice, consult a medical professional.

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❓ Frequently Asked Questions (FAQ)

🔹 Is BMI accurate?

BMI is a general health indicator, not a medical diagnosis.

🔹 Can children use BMI?

Children use a different BMI scale based on age and gender.

🔹 Is this calculator free?

Yes, this BMI calculator is 100% free and unlimited.