Body Mass Index (BMI) Calculator 🏋️
Calculate your BMI by entering your current weight in kilograms and your height in centimeters.
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Understanding Your Body Mass Index (BMI)
The Body Mass Index (BMI) Calculator provides a simple, universal screening measure to categorize an adult's weight status based on their height. It is calculated using the formula: \text{BMI} = \frac{\text{Weight (kg)}}{(\text{Height (m)})^2}. This metric helps identify potential weight issues in a population, although it does not measure body fat directly.
A high BMI can indicate high body fat, which is often associated with increased health risks such as heart disease, hypertension and diabetes. Conversely, a very low BMI may signal other health issues like malnutrition. Use the chart below to understand where your calculated BMI falls.
BMI Classification Chart (WHO Standard)
| BMI Range | Category |
|---|---|
| < 18.5 | Underweight |
| 18.5 – 24.9 | Healthy Weight |
| 25.0 – 29.9 | Overweight |
| ≥ 30.0 | Obesity |
Frequently Asked Questions (FAQs)
What is the formula used in this calculator?
This calculator uses the standard metric formula: \mathbf{BMI} = \frac{\text{Weight (kg)}}{\text{Height (m)}^2}. We automatically convert the height you enter in centimeters (cm) into meters (m) before performing the calculation.
Is BMI applicable to everyone?
The standard BMI chart is primarily intended for adults (20 years and older). It is generally not used for pregnant women, children or highly muscular athletes, as it doesn't account for muscle mass, bone density or fat distribution. Different standards are used for children and adolescents.
What does the "Healthy Weight" range signify?
A BMI between 18.5 and 24.9 is considered the Healthy Weight or "Normal" range. This category is statistically associated with the lowest health risks for the general adult population. It's important to remember that this is a broad range and individual health factors can vary widely.