BMI
CALC

Free BMI Calculator 2024 - Calculate Body Mass Index Online

Calculate your BMI instantly with our free online BMI calculator. Get accurate Body Mass Index results, BMI categories, and personalized health recommendations. Our BMI calculator supports both metric (kg/cm) and imperial (lbs/ft) units for precise BMI calculations. Perfect for weight management and health assessment. Use our BMI calculator kg cm for metric measurements or BMI calculator for children and adults.

BMI Calculator

Units:
cm
kg

Please fill in all required fields to calculate your BMI

BMI Categories

Below 18.5

Underweight

You may need to gain weight. Consult a healthcare provider.

18.5 - 24.9

Normal weight

Great! You have a healthy weight for your height.

25.0 - 29.9

Overweight

Consider losing weight for better health.

30.0 and above

Obese

Weight loss is recommended. Consult a healthcare provider.

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It's a useful screening tool to identify potential weight problems, though it doesn't directly measure body fat. Our free BMI calculator provides instant BMI calculation with accurate results for health assessment.

How is BMI calculated?

BMI is calculated by dividing your weight in kilograms by your height in meters squared. Use our BMI calculator for instant BMI calculation:

BMI = weight (kg) / height (m)²

For imperial units: BMI = (weight in pounds × 703) / (height in inches)². Our BMI tool supports both metric and imperial units for precise BMI calculation.

BMI Limitations

While BMI is a useful screening tool, it has several limitations:

  • Muscle Mass: Doesn't distinguish between muscle and fat
  • Body Composition: Doesn't account for bone density or water weight
  • Age & Sex: May not be accurate for all demographics
  • Fat Distribution: Doesn't indicate where body fat is located

Important: Always consult with a healthcare provider for a comprehensive health assessment.