Free BMI Calculator

Calculate Your Body Mass Index Online

Use this free BMI Calculator to estimate your Body Mass Index using your height and weight. BMI is commonly used to understand body weight categories and general health indicators.

The calculator is simple, fast, mobile-friendly, and suitable for students, adults, fitness users, and general health awareness purposes.

BMI Calculator

Your BMI Result

BMI Value 0
Category ---

BMI Categories

Underweight

BMI below 18.5 may indicate underweight category.

Normal Weight

BMI between 18.5 and 24.9 is generally considered normal.

Overweight

BMI between 25 and 29.9 may indicate overweight category.

Obesity

BMI above 30 may indicate obesity category.

Helpful BMI Information

What Is BMI?

Body Mass Index (BMI) is a simple calculation based on height and weight. It helps estimate whether a person's body weight falls within a common weight category.

BMI is widely used in fitness, healthcare, education, and personal health awareness. Although BMI does not directly measure body fat, it can provide a general indicator of weight balance.

How BMI Is Calculated

BMI is calculated using the formula:

Weight (kg) ÷ Height² (m²)

The calculator automatically performs this formula and displays the result instantly.

Why BMI Matters

BMI can help people understand whether their weight falls into a common health-related category. Many people use BMI calculators for fitness planning, diet awareness, and health tracking.

However, BMI should be considered a general estimate and not a complete medical diagnosis.