Calculate your BMI online

Use the following form to calculate your BMI.





The ideal weight for your height is between lb and lb.

Recommendation: How about to learn some exercises to practice at-home workouts?

BMI chart with results and categories

Result Category
Less than 17 Severely underweight
Between 17 and 18.49 Underweight
Between 18,5 and 24.99 Healthy weight
Between 25 and 29.99 Overweight
Between 30 and 34.99 Obese
Between 35 and 39.99 Severely Obese
Greater than 40 Extremely Obese

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.