BMI Calculator
Calculate adult Body Mass Index (BMI) based on several parameters.
Select units:
Result
Please fill all required fields.
The following table contains categories defined by the World Health Organization using the cut-off points in the right row.
| Underweight (Severe thinness) | < 16.0 |
| Underweight (Moderate thinness) | 16.0 – 16.99 |
| Underweight (Mild thinness) | 17.0 – 18.49 |
| Normal range | 18.5 – 24.99 |
| Overweight (Pre-obese) | 25.0 – 29.99 |
| Obese (Class I) | 30.0 – 34.99 |
| Obese (Class II) | 35.0 – 39.99 |
| Obese (Class III) | ≥ 40.0 |
* Source: Our World in Data, adapted table from World Health Organization: https://ourworldindata.org/obesity#definitions-measurement
Rexcalc is an online collection of calculation instruments designed for numerous life situations. We are in the beginning of our journey and any feedback would be very appreciated. Thank you!