BMI Calculator

Calculate your Body Mass Index perfectly to track your health goals.

Your Body Mass Index:
0.0
Category

Past Calculations

    Your past 3 calculations will appear here.

About BMI Calculator

The Body Mass Index (BMI) Calculator is a vital health and fitness tool that uses your height and weight to estimate whether you fall into a healthy weight range. Developed in the 19th century, BMI remains the universal standard used by doctors and personal trainers worldwide to screen for weight categories that may lead to health problems.

Our Neumorphic calculator perfectly supports both Metric (Kilograms & Centimeters) and Imperial (Pounds & Feet/Inches) systems, executing the mathematical conversion securely inside your browser.

BMI Categories

The World Health Organization (WHO) outlines the following classifications:

Classification BMI Score
Underweight Less than 18.5
Normal Weight 18.5 - 24.9
Overweight 25.0 - 29.9
Obesity 30.0 or greater

Mathematical Formulas

Metric System:
BMI = Weight (kg) / [Height (m)]²

Imperial System:
BMI = 703 × (Weight (lbs) / [Height (in)]²)

Related Calculators