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BMI Calculator

Calculate your Body Mass Index (BMI) using metric or imperial units.

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How to use the BMI Calculator

Select your preferred unit system (Metric or Imperial). Enter your height and weight. The calculator will determine your BMI score and weight category.

?Frequently Asked Questions

What is the BMI Calculator?

The BMI Calculator computes Body Mass Index from height and weight in metric (kg/cm) or imperial (lbs/inches) units, displaying BMI score and WHO weight classification.

Who is the BMI Calculator for?

Used by individuals monitoring health, fitness coaches, and healthcare professionals as a population-level screening metric.

How to Use the BMI Calculator

  1. Select your unit system (Metric or Imperial).
  2. Enter your height and weight.
  3. View BMI score and weight category.

Worked Calculation Example

Height 170cm, weight 70kg → BMI 24.2 (Normal weight range: 18.5–24.9).

Frequently Asked Questions

Is BMI an accurate measure of health?

BMI is a useful screening tool but has limitations — it does not distinguish muscle from fat mass, so athletes may have elevated BMI despite low body fat.

What is a healthy BMI?

WHO guidelines: Underweight < 18.5, Normal 18.5–24.9, Overweight 25–29.9, Obese ≥ 30.

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