BMI Calculator

Calculate your Body Mass Index based on your height and weight, and find out which range you fall into.

Runs in browser
BMI
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Category
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BMI
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Category
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BMI Categories

BMICategory
< 18.5Underweight
18.5 – 24.9Normal –
25.0 – 29.9Overweight
≥ 30.0Obese

Formula

BMI = kg ÷ m²
Weight (kg) divided by height² (m)

How to use?

  1. 1
    Choose unit system Select Metric (kg/cm) or Imperial (lbs/ft) tab.
  2. 2
    Enter height and weight Type your values into the fields.
  3. 3
    Read the result Your BMI value and category are shown. Copy or print the result.

FAQ

What is a normal BMI range?
18.5–24.9 is considered normal. Below 18.5 is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI always accurate?
BMI is a general indicator and does not distinguish between muscle mass and fat. It can be misleading for athletes and older adults.
Are results stored?
No. All calculations run in your browser. No data is sent to any server.

What Is BMI (Body Mass Index)?

BMI (Body Mass Index) is calculated by dividing a person's weight in kilograms by the square of their height in meters. The World Health Organization (WHO) uses it as a standard indicator for weight assessment worldwide.

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