What is a healthy BMI range?

A healthy weight BMI score range according to the World Health Organization (WHO) is between 18.5 and 24.9.

What is the BMI formula?

The standard metric formula is weight (kg) divided by height in meters squared (m²).

– Calculate Your Body Mass Index Online

Metric Body Mass Index (BMI) Calculator

Compare weight against height indexes securely using standard metric calculations. Perfect for rapid physical fitness health assessments.

Age (Years)

Weight (Kilograms)

Height (Centimeters)

Use our free BMI Calculator to quickly determine your Body Mass Index (BMI) and understand whether your weight falls within a healthy range. Simply enter your height and weight, and our calculator will instantly provide your BMI score along with an easy-to-understand weight category. Body Mass Index is a widely used measurement that helps estimate body fat based on a person's height and weight. Healthcare professionals often use BMI as a screening tool to assess potential weight-related health risks. Our online BMI calculator is fast, accurate, and completely free to use on any device.

How Does the BMI Calculator Work?

The BMI formula compares your weight to your height and calculates a score that falls into one of several categories, including underweight, normal weight, overweight, or higher-weight ranges. BMI can be a useful screening tool for identifying potential health risks associated with body weight, but it should not be considered a complete assessment of an individual's overall health. Factors such as muscle mass, body composition, age, sex, genetics, and lifestyle can also play important roles in determining health and well-being.

Benefits of Using Our BMI Calculator

Instant BMI calculation
Supports both metric and imperial units
Easy-to-use and mobile-friendly design
Free online tool with accurate results
Helps track fitness and weight management goals

For a more complete health assessment, you may also find our [Calorie Calculator], [Body Fat Calculator], and [Age Calculator] useful. To learn more about Body Mass Index, its limitations, and health recommendations, you can consult trusted resources such as the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC).

BMI Categories

BMI results are generally classified into the following categories:

Underweight: BMI below 18.5
Normal Weight: BMI 18.5–24.9
higher weight: BMI 25–29.9
Obesity: BMI 30 or higher

Keep in mind that factors such as muscle mass, age, gender, and body composition may affect how accurately BMI reflects an individual's health status.

Why Calculate Your BMI?

Regularly checking your BMI can help you monitor changes in your weight, set realistic fitness goals, and maintain a healthier lifestyle. Whether you are starting a fitness journey, tracking weight loss progress, or simply curious about your health, our BMI Calculator provides quick and reliable results. Try our free BMI Calculator today and take the first step toward understanding your body weight and overall health.