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BMI Calculator

Calculate your Body Mass Index (BMI) to determine if you're at a healthy weight for your height.

ft
in
BMI Calculation Results
Your BMI

0.0

Weight Category

Normal

BMI Scale
Underweight
Normal
Overweight
Obese
16.5 18.5 25 30 40
What Your BMI Means
Healthy Weight Range

Based on your height, a healthy weight range would be:

0 - 0 kg

About BMI

Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m2 where kg is a person's weight in kilograms and m2 is their height in meters squared.

BMI Categories:
  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5 to 24.9
  • Overweight: BMI 25 to 29.9
  • Obesity: BMI 30 or greater
Note: BMI is a screening tool, not a diagnostic tool. It does not directly measure body fat or health. Athletes may have a high BMI due to muscle mass, not excess fat.
BMI Limitations

While BMI is useful for most people, it has some limitations:

  • It may overestimate body fat in athletes and others with muscular builds
  • It may underestimate body fat in older persons and those who have lost muscle mass
  • It doesn't account for differences in body composition between genders
  • It doesn't distinguish between fat, muscle, and bone
  • It doesn't account for ethnic and racial differences in body composition

For a more comprehensive assessment, consider combining BMI with other measurements like waist circumference or body fat percentage.

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