How do you calculate humans BMI?

Body Mass Index (BMI) is a measure of a person's weight relative to their height. It is calculated by dividing the person's weight in kilograms by the square of their height in meters. The formula is:

```

BMI = weight (kg) / height (m)^2

```

BMI is used to screen for weight-related health problems such as obesity, heart disease, and stroke. A healthy BMI is considered to be between 18.5 and 24.9. A BMI of 25 or higher is considered to be overweight, and a BMI of 30 or higher is considered to be obese.

Here is an example of how to calculate BMI:

- A person who weighs 70 kilograms and is 1.7 meters tall has a BMI of 24.2:

```

BMI = 70 / (1.7)^2

= 70 / 2.89

= 24.2

```