How to Calculate BMI: Step-by-Step Body Mass Index Formula

Learn how to calculate your BMI using weight and height with an easy formula to determine if you're underweight, healthy, or overweight.

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To figure out BMI (Body Mass Index): Divide your weight in kilograms by your height in meters squared. Use this formula: BMI = weight (kg) / height (m²). For example, if you weigh 70 kg and are 1.75 meters tall, your BMI is approximately 22.86. This metric helps assess whether an individual has a healthy, underweight, overweight, or obese classification.

FAQs & Answers

  1. What is the formula to calculate BMI? BMI is calculated by dividing your weight in kilograms by your height in meters squared: BMI = weight (kg) / height (m²).
  2. What does my BMI number mean? Your BMI indicates whether you are underweight, healthy weight, overweight, or obese based on established classification ranges.
  3. Can BMI accurately measure my health? BMI is a useful screening tool but does not directly measure body fat or health; it should be used alongside other assessments.
  4. How can I convert my height and weight to metric units for BMI? To calculate BMI, convert your weight to kilograms and height to meters before applying the BMI formula.