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.

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Maintaining a healthy weight is a critical component of overall well-being and longevity. One of the most common and accessible tools used by healthcare professionals worldwide to assess weight status is the Body Mass Index, or BMI. This simple numerical value provides a screening for potential weight-related health issues by evaluating your weight in direct proportion to your height. While it is not a diagnostic tool on its own, it offers a reliable starting point for understanding your current physical condition and whether your weight falls within a range that is statistically associated with the lowest risk for chronic diseases such as heart disease, diabetes, and hypertension.

Peso (kg)

Altura (cm)

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Como funciona

Body Mass Index (BMI) is a statistical measure that compares a person's weight and height. Although it does not directly measure body fat percentage, it is widely used by doctors to identify weight problems. Simply enter your weight and height in either metric or imperial units to instantly see your score and health category.

Fórmula de cálculo

BMI = weight (kg) / [height (m)]²

Calculation Examples

To help you understand how BMI varies with height and weight, consider these two examples: 1. **Metric Example**: An individual weighing 75 kg with a height of 180 cm (1.8 meters). Using the formula: 75 / (1.8 * 1.8) = 23.15. This falls comfortably within the 'Normal weight' category. 2. **Imperial Example**: An individual weighing 160 lbs with a height of 5 feet 10 inches (70 inches). The imperial formula is [Weight (lbs) / Height (inches)²] * 703. So: (160 / 4900) * 703 = 22.95. This also represents a 'Normal weight' status.

Why use this tool in your daily life?

Knowing your BMI is the first step in a proactive health strategy. It provides a baseline that you can discuss with your doctor, helping you identify if you need to adjust your diet or activity levels to prevent future health complications.