BMI Calculator

Enter Your Details

cm
kg
cm

BMI Categories

Underweight
Normal weight
Overweight
Obesity
BMI Category BMI Range (kg/m²)
Underweight < 18.5
Normal weight 18.5 – 24.9
Overweight 25 – 29.9
Obesity (Class I) 30 – 34.9
Obesity (Class II) 35 – 39.9
Obesity (Class III) ≥ 40

How To Use

1. Enter Details

Input your height and weight. Use the toggles to switch between cm/ft-in and kg/lbs.

2. Calculate BMI

Click the 'Calculate BMI' button to get your result instantly.

3. View Interpretation

See your BMI value, its category, and personalized health tips.

Why Choose Us

Highly Accurate

Our calculator provides precise BMI results based on standard formulas.

User-Friendly Design

Clean, intuitive interface makes it easy for anyone to use.

Instant Results

Get your BMI and interpretation in real-time without delay.

Fully Responsive

Works seamlessly on desktops, tablets, and mobile phones.

Why This Tool Is Important

Health Awareness

Helps you understand your current weight status and potential health risks.

Goal Setting

Provides a baseline for setting healthy weight goals and tracking progress.

Informed Decisions

Empowers you to make informed decisions about your diet and exercise routines.

Professional Guidance

Helps you identify when to seek advice from healthcare professionals.

Tips For Using This Tool

Accurate Measurements

For the most reliable results, ensure you use accurate measurements for your height and weight. Use a tape measure and a calibrated scale.

Consult a Professional

Your BMI is a starting point, not a diagnosis. Always consult a healthcare professional for personalized health advice and guidance.

Monitor Over Time

Track your BMI periodically to monitor trends in your health journey rather than focusing on a single number. Consistent trends are more informative.

Understand Limitations

BMI has limitations and may not be accurate for everyone, including athletes with high muscle mass or pregnant women. It's a general indicator.

Frequently Asked Questions (FAQ)

What is BMI?

BMI stands for Body Mass Index. It is a measure that uses your height and weight to work out if your weight is healthy.

How is BMI calculated?

BMI is calculated by dividing your weight in kilograms by the square of your height in meters ($BMI = \frac{weight(kg)}{height(m)^2}$).

Is BMI accurate for everyone?

BMI is a good general indicator but may not be accurate for certain groups like athletes (due to high muscle mass), pregnant women, or the elderly.

What are the BMI categories?

The main categories are Underweight (<18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obesity (≥30).

Should I consult a doctor based on my BMI?

Yes, especially if your BMI falls into the Underweight, Overweight, or Obese categories, it's advisable to consult a healthcare professional for personalized advice.

What if my units are different?

Our calculator provides toggle buttons to switch between cm/ft-in for height and kg/lbs for weight, handling conversions automatically.

Does this tool store my data?

No, the BMI calculation is performed locally in your browser. We do not store your height, weight, or BMI results on our servers.

Can I use this for children?

BMI interpretation for children and adolescents is different from adults. This tool is primarily designed for adults. Consult a pediatrician for children's BMI.

What are healthy lifestyle tips?

General tips include a balanced diet, regular exercise, adequate sleep, and staying hydrated. Specific tips are provided with your BMI result.

How often should I check my BMI?

Regular checks (e.g., every few months) can help you monitor your health trends, but always prioritize overall well-being over just the number.