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BMI Calculator

Calculate your Body Mass Index and assess health risks based on WHO guidelines

Years
kg
(154.3 lbs)
cm
(5 feet 9 inches)
Disclaimer: BMI is a screening tool, not a diagnostic measure. It doesn't account for muscle mass, bone density, overall body composition, and racial/sex differences. Always consult with a healthcare provider for a comprehensive health assessment.
Your BMI Result
22.9
Normal Weight
Low Risk

Your weight is within the healthy range for your height. Maintain your current lifestyle.

Health Metrics
60.2
Min Healthy Weight (kg)
81.0
Max Healthy Weight (kg)
0.0
Weight to Lose (kg)
0.92
BMI Prime
BMI Classification Scale
Underweight (<18.5) Obese (≥30)
Normal (18.5-24.9) Overweight (25-29.9)
Your BMI: 22.9
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Health Tip

A healthy BMI range (18.5-24.9) is associated with lower risk of chronic diseases. Combine balanced nutrition with regular physical activity for optimal health.

What is BMI Calculator?

Body Mass Index (BMI) is a simple measurement used to evaluate whether a person’s body weight is healthy for their height. The BMI Calculator helps individuals understand their body composition and potential health risks by comparing weight against height using internationally accepted formulas.

Healthcare professionals widely use BMI screening as an early indicator of possible weight-related health concerns such as obesity, malnutrition, heart disease risk, and metabolic disorders.

How BMI Calculator Works

BMI is calculated by dividing body weight by height squared. The formula differs slightly depending on measurement units.

After calculation, the result is categorized using World Health Organization (WHO) BMI classification standards. These classifications help determine health risk levels associated with body weight.

BMI Classification Categories

Health Benefits of Monitoring BMI

How To Use This BMI Calculator

  1. Select your preferred unit system.
  2. Enter gender and age details.
  3. Provide weight and height values.
  4. Select physical activity level.
  5. Click calculate BMI to view results and health assessment.

Limitations of BMI

BMI is a useful screening tool but does not directly measure body fat percentage or muscle mass. Athletes and muscular individuals may show higher BMI despite having healthy body composition. Always combine BMI with professional medical evaluation for accurate health diagnosis.

Frequently Asked Questions

Is BMI accurate for everyone?
BMI provides general health estimation but may not be fully accurate for athletes, elderly individuals, or pregnant women.
What BMI range is considered healthy?
A BMI between 18.5 and 24.9 is considered healthy for most adults.
Does BMI measure body fat?
No. BMI estimates body weight relative to height but does not directly measure fat percentage.
Can BMI predict disease risk?
BMI helps identify potential risk levels for conditions like diabetes, heart disease, and obesity related disorders.
How often should BMI be checked?
Most individuals should monitor BMI every few months while tracking fitness or weight goals.