Enter your height and weight to get your Body Mass Index, your weight category and the healthy weight range for your height — calculated instantly in your browser, nothing is sent to a server.
| Category | Range |
|---|---|
| Underweight | < 18.5 |
| Normal weight | 18.5 – 24.9 |
| Overweight | 25.0 – 29.9 |
| Obesity class I | 30.0 – 34.9 |
| Obesity class II | 35.0 – 39.9 |
| Obesity class III | ≥ 40.0 |
Your Body Mass Index is your weight in kilograms divided by the square of your height in metres. This BMI calculator does that for you while you type: pick metric or imperial units, enter your height and weight, and you instantly see your BMI, your weight category according to the WHO table, and the healthy weight range that belongs to your height. The coloured gauge shows where you sit between underweight and obesity class III, and the detail line tells you exactly how many kilograms or pounds separate you from the healthy range. The calculation runs entirely in your browser, so your height and weight never leave your device — no upload, no signup, no tracking.
Free online utility tools. No signup. No tracking.
Impressum · Some links contain affiliate advertising