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BMI Calculator

Measure your Body Mass Index (BMI) and understand your weight status

Calculate your Body Mass Index (BMI) and find out if you are underweight, normal weight, overweight, or obese.

How to use this tool
  • Enter your Weight in kilograms (kg)
  • Enter your Height in centimeters (cm)
  • Click Calculate BMI to see your BMI value and weight category
Privacy & Security

All calculations are performed locally in your browser. No data is ever sent to any server.

BMI Formula
  • BMI = weight (kg) / (height in meters)²
  • Underweight: < 18.5
  • Normal weight: 18.5 – 24.9
  • Overweight: 25 – 29.9
  • Obese: ≥ 30
What is a healthy BMI range?

A healthy BMI for most adults is between 18.5 and 24.9.

Is BMI the same for men and women?

Yes, the BMI formula is the same for men and women.

Can I use this for children?

This calculator is designed for adults aged 18+.

Is this tool free?

Yes – completely free with no registration, limits, or watermarks.

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