Advanced BMI Calculator

Comprehensive Body Mass Index calculator with accurate CDC growth chart data, ethnicity adjustments, and detailed health insights for all ages

Enter Your Information

Age (Years)

Gender Identity MaleFemaleNon-binaryTransgender MaleTransgender FemaleGenderqueerPrefer not to sayOther identity

Ethnicity (Optional) GeneralAsianBlack/AfricanHispanic/LatinoWhite/CaucasianOther

For Medical Accuracy Required for ages 2-19 (biological sex assigned at birth) Select biological sex for CDC percentilesMale (assigned at birth)Female (assigned at birth)

CDC growth percentiles are calculated differently for boys and girls based on biological development patterns. This information ensures accurate percentile calculations for children and teens (ages 2-19).

I am currently pregnant

I am an athlete or very muscular

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Important: BMI calculations are not accurate during pregnancy. Please consult with your healthcare provider for appropriate weight gain monitoring.

Height

Weight

0.0

Category

Underweight Normal Overweight Obese

Note for Athletes: BMI doesn't distinguish between muscle and fat. Athletes and very muscular individuals may have higher BMI due to muscle mass, not excess fat. Consider additional measurements like body fat percentage or waist circumference for a more accurate assessment.

📚 Official Resources & Tools

• CDC Growth Charts (Children & Teens)
• WHO Growth Reference (Ages 5-19)
• NHLBI: Assessing Your Weight & Health Risk
• American Heart Association: Weight Management

⚕️ Medical Disclaimer

This calculator is for educational and informational purposes only. BMI is a screening tool that has significant limitations:

• Does NOT measure body fat directly
• Does NOT account for muscle mass, bone density, or body composition
• May not be accurate for athletes, elderly, pregnant women, or those with certain medical conditions
• Children's percentiles are approximations based on CDC data
• Ethnicity adjustments are general guidelines and may not apply to every individual

Always consult qualified healthcare professionals for personalized medical advice, diagnosis, or treatment. This tool should never replace professional medical judgment.