## Calculate your BMI online

Use the following form to calculate your BMI.

### How to calculate my BMI?

1. Weight - Using a scale, measure your body weight write down the value. For example, 181 lbs.
2. Convert your weight to kg - Using a calculator, convert your weight from pounds to kilograms by dividing the value by 2.205. For example, 181 ÷ 2.205 = 82.10 kg.
3. Height - Using a tape measure, measure your height and write down the value. For example, 71 inches.
4. Convert your height to meters - Using a calculator, convert your height from inches to meters by dividing the value by 39.97. For example, 71 ÷ 39.97 = 1.8 meters.
5. Squared height - Using a calculator, calculate your squared height in meters and write down the value. The easiest way is by multiplying your height by itself. For example, 1.80 x 1.80 = 3.24.
6. BMI result - Using a calculator, divide your weight in kg by your squared height in meters. For example, 82.1 ÷ 3.24 = 25.32.
7. BMI chart - Check the BMI Chart to know if you are underweight, in a healthy weight or overweight. For example, BMI 25.32 means the person is overweight.

To know more and see other examples on how to calculate your BMI, click here.

### FAQ about BMI

What does BMI stand for? - BMI is an acronym for Body Mass Index, which is an approach to measure obesity. Read more.

How to calculate BMI? - BMI is calculated as weight in kilograms divided by the squared height in meters. Read more.

What is a healthy BMI for a child? - For children and teenagers (from 6 to 15 years old), there is another BMI chart Read more.

What are the limitations of BMI? - BMI can overpredict overweight or obesity in people who exercise and pregnant women. Read more.

Is BMI different for males and females? - No, the BMI equation is the same for both men and women.