ToolboxKit

Body Mass Index (BMI) Calculator

Enter your height and weight to see your body mass index and which category you fall into.

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Under 18.5: Underweight
18.5–24.9: Normal
25–29.9: Overweight
Over 30: Obese

How to Use

  1. 1Enter your height in centimeters and your weight in kilograms.
  2. 2Your BMI value is calculated automatically.
  3. 3The result is color-coded by category: underweight, normal, overweight, or obese.

Frequently Asked Questions

Is BMI accurate for everyone?

BMI is a useful general screening tool, but it doesn't account for muscle mass, bone density, or body composition — athletes and very muscular people may show a higher BMI without excess fat.

What BMI range is considered normal?

A BMI between 18.5 and 24.9 is generally classified as normal weight, though healthy ranges can vary by age, sex, and individual health context.

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