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Health Bmi

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Parameters

cm
50250
kg
20300

Calculation Results

Your BMI

24.2

Category

normal

Ideal Weight (Min)

53.5

Ideal Weight (Max)

72

BMI Category Dial

24.2

normal

Calculator Guide & Math

1Understanding BMI: Body Mass Index Equations & Categories

Body Mass Index (BMI) is a standardized screening metric used by medical institutions (including the WHO) to evaluate body weight categories relative to height. It is calculated by dividing weight in kilograms by height in meters squared, serving as a proxy for body fat composition.

Formula & Math Explanation

BMI = Weight (kg) / [Height (m)]^2
  • •Weight = Body mass in kilograms (lbs / 2.2046)
  • •Height = Standing height in meters (inches x 0.0254)
  • •Ideal Range = BMI between 18.5 and 24.9. BMIs below 18.5 indicate underweight, 25 to 29.9 overweight, and 30+ obese.

2Step-by-Step BMI Example

An adult is 180 cm tall (1.80 meters) and weighs 85 kg.

  1. Square the height in meters: 1.80 x 1.80 = 3.24.
  2. Divide weight by height squared: 85 / 3.24 = 26.23.
  3. Identify category: 26.2 falls in the Overweight range (25.0 to 29.9).
Result Summary: The BMI score is 26.2 (Overweight). The healthy weight range for this height is between 59.9 kg and 80.7 kg.

BMI Category FAQs

While the math formula is the same, child and teen BMI results are interpreted differently. They are plotted against percentiles for age and gender groups because body compositions change rapidly during growth.