Your BMI is:
Free Online Body Mass Index (BMI) Calculator
Body Mass Index (BMI) is a simple measurement using a person's height and weight to determine if they are in a healthy weight range. Our Free Online BMI Calculator provides instant, accurate results based on World Health Organization (WHO) standards.
Frequently Asked Questions (FAQ)
How is BMI calculated?
The formula for BMI is weight in kilograms divided by height in meters squared (kg/m²). Our tool handles the math for you—just enter your standard height in centimeters and weight in kilograms.
What do the BMI categories mean?
According to the WHO, the standard weight status categories associated with BMI ranges for adults are:
- Below 18.5: Underweight
- 18.5 to 24.9: Normal (Healthy Weight)
- 25.0 to 29.9: Overweight
- 30.0 and Above: Obese
Is BMI accurate for everyone?
While BMI is a great general indicator of health for most adults, it does have limitations. It does not distinguish between body fat and muscle mass. Therefore, highly muscular athletes may have a high BMI but a low body fat percentage. Always consult a healthcare professional for a complete health assessment.