Free AI-Powered BMI Calculator
Easily calculate your Body Mass Index and get a detailed AI-powered explanation and a downloadable report.
BMI Formula: BMI = Body weight (kg) / height² (m²)
BMI Categories
| BMI Range | Category |
|---|---|
| < 18.5 | Underweight |
| 18.5 – 24.9 | Normal weight |
| 25.0 – 29.9 | Overweight |
| ≥ 30.0 | Obese |
CalcTools AI's BMI Calculator is an intelligent tool designed to help you quickly assess your body mass index. By simply entering your body weight and height, our calculator provides an accurate BMI result. Beyond the number, our integrated AI assistant offers a clear, step-by-step explanation of the calculation and provides context on what your BMI category means.
Whether you are tracking your fitness journey, monitoring your health, or simply curious, our tool delivers fast, reliable, and easy-to-understand results. For your convenience, you can even download a detailed PDF report of your calculation and the AI's explanation to share with a health professional or keep for your records.
Our BMI calculator is just one of many specialized tools powered by AI on our platform. We are dedicated to providing accessible and informative calculators for all your needs, from simple math to complex health metrics.
Discover the smarter way to calculate and understand your health data with CalcTools AI.