BMI Calculator

Body Mass Index, healthy weight range & more — updates as you type

Sex
Height
cm
ft
in
Weight
kg
More options waist size · BMI standard
cm
BMI standard
–kg/m²
Enter your height and weight

Healthy weight for your height –
BMI Prime–ratio to upper normal limit
Ponderal Index–kg/m³
Est. body fat–Deurenberg formula
Waist-to-height–add waist size
CategoryBMI (kg/m²)
How is BMI calculated?

Metric: BMI = weight (kg) ÷ height (m)²

Imperial: BMI = 703 × weight (lb) ÷ height (in)²

For ages 2–19, BMI is interpreted with age- and sex-specific growth percentiles rather than adult categories. Asian cut-offs (WHO expert consultation) use lower thresholds because health risks rise at lower BMI in many Asian populations.

BMI is a screening tool, not a diagnosis. It doesn't distinguish muscle from fat and is less accurate for athletes, pregnant people and older adults. Talk to a healthcare provider about your health.

BMI Calculator – Quickly Assess Your Body Mass Index

Your Body Mass Index (BMI) is a simple yet powerful tool for understanding your body weight in relation to your height. The BMI Calculator is here to help you determine whether you’re in a healthy weight range, underweight, overweight, or at risk for health complications.

Whether you’re aiming to lose weight, maintain a healthy lifestyle, or simply monitor your overall well-being, knowing your BMI is an essential first step in your fitness journey.

What the BMI Calculator Does:

  • 📏 Instant Results: Simply enter your height and weight to get your BMI instantly.

  • ⚖️ Understand Your Weight Category: See whether your BMI falls into underweight, normal weight, overweight, or obese categories.

  • 💡 Health Insights: Get basic information on how your BMI relates to health risks like heart disease, diabetes, and more.

  • 🧠 Track Your Progress: Use the BMI Calculator to track changes in your body weight and see how it impacts your overall health.

💡 Why BMI Matters:

BMI is an easy and widely used tool to evaluate if your weight is in a healthy range for your height. Although it doesn’t directly measure body fat, BMI is a useful screening tool to flag potential health risks linked to being underweight or overweight.

  • 🔍 Assess Risk: Being underweight or overweight can increase your risk for various health conditions.

  • 🏃‍♂️ Track Health Changes: Keep tabs on your weight over time and see how your habits impact your BMI.

  • 💪 A Starting Point for Change: If you’re looking to improve your health, understanding your BMI can help you set achievable goals.

Start Monitoring Your Health Today!

The BMI Calculator is quick, easy, and free to use. It’s the perfect first step in your health and fitness journey, helping you make informed decisions about your body.

👉 Try the BMI Calculator now and get a better understanding of your body’s health with just a few clicks!

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