General calculator
BMI Calculator
Calculate your Body Mass Index (BMI) using our free tool. Find your weight category and understand what your BMI means for your health.
Introduction
The BMI Calculator is a useful tool to estimate if a person has a healthy body weight for their height. It is a widely used screening tool for weight categories.
How to Use
Enter your weight in kilograms and your height in centimeters. Click calculate to find your BMI score and category.
Formula
BMI Formula: Weight (kg) / (Height (m) × Height (m)).
Examples
Example: Weight = 70kg, Height = 175cm (1.75m). BMI = 70 / (1.75 * 1.75) = 22.9.
Results Explained
Your result includes a numeric score and a category: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-29.9), or Obese (≥30).
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Frequently Asked Questions
What is a normal BMI?
A normal BMI range is typically between 18.5 and 24.9.
Is BMI accurate for athletes?
BMI can be less accurate for very muscular people because muscle weighs more than fat.
How can I lower my BMI?
Lowering BMI usually involves a combination of a healthy diet and regular physical activity.
Does BMI differ for men and women?
The formula is the same, but the interpretation can sometimes vary slightly based on body composition.
What is considered obese?
A BMI of 30 or higher is generally classified as obese.
How often should I check my BMI?
Checking once a month or during health checkups is usually sufficient.