BMI Calculator
Our Body Mass Index (BMI) calculator is a simple tool to help you get a sense of where your weight stands in relation to your height. It’s designed for adults to get a quick snapshot of their general weight category, which can be a starting point for health conversations.
What is BMI?
Body Mass Index (BMI) is a numerical value derived from your weight and height. It’s a widely used screening tool that provides a simple way to categorize a person’s weight as underweight, normal weight, overweight, or obese. The calculation uses a mathematical formula to produce a score that helps healthcare professionals assess potential weight-related health risks.
How to Use This Calculator
- Select your preferred units: Choose between Metric (cm/kg) or Imperial (ft/in/lbs) using the toggle buttons.
- Enter your details: Type your height and weight into the corresponding fields.
- Calculate your BMI: Click the “Calculate BMI” button.
- View your result: Your BMI score and weight category will appear instantly.
Understanding Your Results
The following table shows the standard BMI categories for adults, as defined by the World Health Organization (WHO).
| BMI Range | Weight Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| 30.0 and above | Obesity |
Frequently Asked Questions (FAQ)
Is BMI an accurate measure of health?
BMI is a useful screening tool, but it doesn’t tell the whole story. It doesn’t distinguish between fat and muscle mass. For example, a very muscular athlete might have a high BMI and be categorized as “overweight” despite having very low body fat. It’s a starting point, not a final diagnosis of your health.
What are the limitations of the BMI calculator?
The main limitation is that BMI is an indirect measurement of body fat. It doesn’t account for factors like body composition (muscle vs. fat), age, sex, or fat distribution. Therefore, while useful for population-level studies, it should be interpreted with caution for individuals.
What should I do with my BMI result?
Use your BMI result as a conversation starter with a healthcare professional, such as a doctor or registered dietitian. They can provide a more comprehensive assessment of your health, considering your lifestyle, genetics, and other measurements to give you personalized advice.