What Is the Formula for BMI? How to Calculate Body Mass Index Easily

Learn the formula for BMI, how to calculate Body Mass Index using metric and imperial units, and understand its significance in health screening.

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The formula for Body Mass Index (BMI) is your weight in kilograms divided by your height in meters squared (kg/m²). In simplified terms, BMI = weight (kg) / [height (m)]². For those using pounds and inches, the formula is a bit different: BMI = [weight (lbs) / [height (in)]²] * 703. This calculation provides a rough estimate of your body fatness and helps screen for weight categories that may lead to health problems, but it doesn't directly measure body fat.

FAQs & Answers

  1. What is the BMI formula using metric units? The BMI formula using metric units is your weight in kilograms divided by your height in meters squared (BMI = weight (kg) / [height (m)]²).
  2. How do you calculate BMI with pounds and inches? To calculate BMI using pounds and inches, use the formula: BMI = [weight (lbs) / height (in)²] × 703.
  3. What does BMI measure? BMI provides a rough estimate of body fatness and helps screen for weight categories that may pose health risks, but it does not directly measure body fat.

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