Question 1

What is BMI?

Accepted Answer

BMI (Body Mass Index) is a measure of body fat based on your weight in relation to your height. It is calculated by dividing your weight in kilograms by the square of your height in meters. The WHO uses BMI to classify weight status in adults.

Question 2

What is a healthy BMI range?

Accepted Answer

According to the World Health Organization (WHO), a BMI between 18.5 and 24.9 is considered normal weight. A BMI below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is classified as obese.

Question 3

How is BMI calculated?

Accepted Answer

The BMI formula is: BMI = weight (kg) / height (m) squared. For example, if you are 170 cm tall and weigh 65 kg, your BMI would be 65 / (1.70 x 1.70) = 22.49.

Question 4

How is ideal body weight calculated?

Accepted Answer

Ideal body weight is calculated as height (m) x height (m) x 22. A BMI of 22 is associated with the lowest health risks. For example, if you are 170 cm tall, your ideal weight would be 1.70 x 1.70 x 22 = 63.6 kg.

Question 5

Is my data sent to a server?

Accepted Answer

No, all calculations are performed entirely in your browser. Your height and weight data are never sent to any external server.

BMI Range	Classification (WHO)
Below 18.5	Underweight
18.5 - 24.9	Normal weight
25.0 - 29.9	Overweight
30.0 - 34.9	Obese (Class I)
35.0 - 39.9	Obese (Class II)
40.0 and above	Obese (Class III)

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