🩺 BMI Calculator

Calculate your Body Mass Index (BMI) from your height and weight. Supports both metric and imperial units, with WHO category labels.

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How to Use

  1. 1Choose metric (cm/kg) or imperial (ft-in/lb).
  2. 2Enter your height and weight.
  3. 3Read your BMI and the WHO weight category.

Frequently Asked Questions

How is BMI calculated?

BMI = weight (kg) / height (m)Β². For imperial: BMI = 703 Γ— lb / inΒ².

What is a healthy BMI?

WHO classifies 18.5–24.9 as healthy weight for most adults.

Does BMI work for athletes?

BMI doesn't distinguish muscle from fat, so it's less accurate for very muscular people.

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