BMI Calculator

Overview

The Body Mass Index (BMI) is a quick screening metric that relates your weight to your height and offers a snapshot of overall weight status.

This calculator lets you enter your weight in kilograms and height in centimetres, instantly returning your BMI and the category it falls into—all without page reloads.

BMI is widely used for adults aged 18 and above; it does not distinguish between muscle and fat mass and may misclassify athletes, pregnant women, or older adults with low muscle tone.

Consider BMI a starting point. Always discuss results with a qualified health-care professional before making lifestyle or medical decisions.

Key Features & Use Cases

Gain value from this tool in several practical ways.

• Calculate BMI instantly as you type—no submit button required.
• See your weight category labelled beside the numeric result.
• Enjoy full responsiveness on phones, tablets, and desktops.
• Copy the page URL to share pre-filled results with friends or clients.

Step-by-Step Guide

Follow these steps to compute your BMI in seconds.

1. Enter your weight (kg) in the first field.
2. Enter your height (cm) in the second field.
3. Watch the BMI and Category fields update instantly.
4. Compare your category with the interpretation table below for next-step guidance.

Scoring & Interpretation

The table below shows how to interpret your BMI.

Formula Explained

BMI uses a single equation that balances weight against height.

BMI = weight (kg) / (height (m))²