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BMI Calculator

Calculate your Body Mass Index (BMI) from height and weight. Shows your BMI score, health category (underweight, normal, overweight, obese), and the healthy weight range for your height. Supports both metric (kg/cm) and imperial (lbs/inches) units.

Updated June 2026

  1. 1Enter your height and weight
  2. 2Calculate
  3. 3View your BMI and category

How to use BMI Calculator

  1. 1

    Enter your height and weight

    Use metric or imperial units, whichever you prefer.

  2. 2

    Calculate

    Click 'Calculate' to compute your Body Mass Index.

  3. 3

    View your BMI and category

    See whether you fall into underweight, normal, overweight, or obese ranges.

Frequently asked questions

Everything you need to know about bmi calculator.

BMI = weight (kg) ÷ height² (m²). For imperial units, BMI = (weight (lbs) ÷ height² (inches²)) × 703.

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